Directors (And Other Officers)
| Concept | 
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                                
                                    
                                        As at 2025-06-27  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Directors (and other officers) | ||||||||||||
| Information about directors (and corporate auditors) | ||||||||||||
| Official title or position | 
                                        
                                             
                                                取締役常務執行役員
サステナビリティ推進本部長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
(監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役常務執行役員
経営企画室長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役上席執行役員
水戸本店長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役上席執行役員
商品本部長
兼商品開発部長兼EC商品部長
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                代表取締役会長執行役員
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
(常勤監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                代表取締役社長執行役員
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
(監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                取締役
(監査等委員)
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Name | 
                                        
                                             
                                                大坂  尚登
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                水嶋 陽子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                水谷 太郎
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                保村 美也子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                瀬谷 和史
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                平本  忠
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                岡部 誠司
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                吉原  祐二
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                谷萩 寛子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                佐藤 史子
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                萩原 慎二
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Date of birth | 
                                        
                                             
                                                1973-01-30
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1971-03-24
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1970-12-11
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1970-04-09
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1971-05-18
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1958-11-06
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1966-12-14
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1967-02-08
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1964-01-01
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1976-11-12
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1974-11-24
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Career summary | — | |||||||||||
| Term of office | 
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)6
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)6
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)6
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)5
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                (注)6
                                                
                                             
                                        
                                     | 
                                
                                    — | 
| Number of shares held (Ordinary shares) | 
                                        
                                             
                                                176,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                16,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                22,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                34,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                450,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                28,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                100,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                2,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                834,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     |