Other current assets and liabilities - Other Current Liabilities (Details) - JPY (¥) ¥ in Millions	Mar. 31, 2026	Mar. 31, 2025
Subclassifications of assets, liabilities and equities [abstract]
Accrued bonus	¥ 289	¥ 364
Tax payables	98	62
Accrued paid leaves	94	52
Payable for crypto assets	121	40
Advance received and other	12	18
Total	¥ 615	¥ 536

The amount of current non-financial liabilities that the entity does not separately disclose in the same statement or note. [Refer: Other financial liabilities]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant