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Other Disclosures3930Hatena Co.,Ltd.Information and Communications, Services and Others

Hatena and KADOKAWA jointly develop next-generation novel editor “RIKU,” begin recruiting users for closed beta testing

Recruitment for participants in the closed beta test of “RIKU,” an AI novel editor jointly developed by はてな and KADOKAWA, began on 30 July 2026 ahead of its official release.

Worth reading
58In focus
Scored from 5 of 6 sections
Direction
Neutral
Direction inferred from the company’s description.
Scale
—
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Wording
Conditional
How definitive the wording is.

Announced details

RIKU
Applicable field (uses covered by this announcement)

Support for novel writing, setting development, proofreading, copyediting, reviews, feedback and other creative activities

Launch dateStart of recruitment for closed beta test participants: 30 July 2026 (actual). Official release timing: Not disclosed.
Relationship between the counterparty and the company
Hatena Co.,Ltd.3930
Relationship with the Company

Joint development with KADOKAWA. The partnership has continued since the joint development of the KAKUYOMU web novel platform, launched in 2016. KADOKAWA operates RIKU.

CounterpartyKADOKAWA CORPORATION

Director, Representative Corporate Executive, President and CEO: Natsuno Takeshi (夏野 剛); headquarters: Chiyoda-ku, Tokyo. Other details: Not disclosed.

Impact on Business Performance

The impact on results for the current fiscal year is expected to be immaterial. If a revision becomes necessary, timely disclosure will be made.

The company does not address Contract Value / Offering price.

Announced details
ItemDetails
Names of Products / Services CoveredRIKU
CounterpartyKADOKAWA CORPORATION
Counterparty overviewDirector, Representative Corporate Executive, President and CEO: Natsuno Takeshi (夏野 剛); headquarters: Chiyoda-ku, Tokyo. Other details: Not disclosed.
Relationship with the CompanyJoint development with KADOKAWA. The partnership has continued since the joint development of the KAKUYOMU web novel platform, launched in 2016. KADOKAWA operates RIKU.
Launch dateStart of recruitment for closed beta test participants: 30 July 2026 (actual). Official release timing: Not disclosed.
Applicable areaSupport for novel writing, setting development, proofreading, copyediting, reviews, feedback and other creative activities
Impact on Business PerformanceThe impact on results for the current fiscal year is expected to be immaterial. If a revision becomes necessary, timely disclosure will be made.
Items this document does not state (11)
Contract ValueOffering priceContract DateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationLocation scaleQuantitative EffectsUsage historySource

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To improve the service ahead of its official release.

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Hatena and KADOKAWA jointly develop next-generation novel editor “RIKU,” begin recruiting users for closed beta testing | Hatena Co.,Ltd. (3930) timely disclosure | Komori