v3.26.1
Related Party Transactions - Summary of Compensation for Key Executives (Directors) (Details) - JPY (¥)
¥ in Millions
12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 31, 2024
Disclosure of transactions between related parties [abstract]      
Remuneration and bonuses ¥ 379 ¥ 262 ¥ 231
Share-based payments 189 0 0
Total ¥ 568 ¥ 262 ¥ 231