Consolidated Statement Of Changes In Equity
| Concept | 
                                    
                                        As at 2024-07-31  | 
                            
                                
                                    
                                        As at 2024-01-31  | 
                            
                        
|---|---|---|
| Consolidated statement of changes in equity | ||
| Statement of changes in equity | ||
| Net assets | 
                                        
                                             
                                                1,414,228,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     | 
                                
                                    
                                        
                                             
                                                1,289,212,000
                                                
                                                    
                                                        JPY
                                                    
                                                
                                             
                                        
                                     |