Major Shareholders
| Concept | 
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                                
                                    
                                        As at 2025-03-31  | 
                            
                        
|---|---|---|---|---|---|---|---|---|---|---|---|
| Major shareholders | |||||||||||
| Major shareholders | |||||||||||
| Name | 
                                        
                                             
                                                髙杉 純
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                ㈱GT
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                髙杉 仁
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                WU ASSETS PHE. LTD. DIRECTOR GOH HUP LIN
(常任代理人 ㈱三菱UFJ銀行)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                ㈱スペース・P
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                BNP PARIBAS NEW YORK BRANCH-PRIME BROKERAGE CLEARANCE ACCOUNT
(常任代理人 香港上海銀行東京支店)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                日本マスタートラスト信託銀行㈱(信託口)
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                ㈱英興発
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                ㈱FUKU
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                原田 耕次
                                                
                                             
                                        
                                     | 
                                
                            
| Address | 
                                        
                                             
                                                東京都世田谷区
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                東京都武蔵野市吉祥寺南町1-32-28
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                東京都大田区
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1 KIM SENG PROMENADE 10-02 GREAT WORLD  CITY SINGAPORE 237994
(東京都千代田区丸の内1-4-5)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                東京都武蔵野市吉祥寺北町1-12-11
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                787 7TH AVENUE,NEW YORK,NEW YORK
(東京都中央区日本橋3-11-1)
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                東京都港区赤坂1-8-1
                                                
                                             
                                        
                                     | 
                                
                                    — | 
                                        
                                             
                                                東京都武蔵野市吉祥寺南町2-28-10
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                東京都武蔵野市吉祥寺南町1-32-28
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                東京都武蔵野市
                                                
                                             
                                        
                                     | 
                                
                            
| Number of shares held | 
                                        
                                             
                                                700,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                350,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                700,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                178,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                400,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                163,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1,311,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                13,103,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                8,751,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                350,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                200,000
                                                
                                                    
                                                        xbrli:shares
                                                    
                                                
                                             
                                        
                                     | 
                                
                            
| Shareholding ratio (excluding treasury shares) | 
                                        
                                             
                                                0.0298
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0149
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0298
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0076
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0170
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0069
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0559
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.5588
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.3732
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0149
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                0.0085
                                                
                                                    
                                                        xbrli:pure
                                                    
                                                
                                             
                                        
                                     |