Tenjin Kotone Agency Confirms Cast Change, New Performer From November 11
SPIRAL STAIRS STUDIO announced on November 1 that the performer behind VTuber Tenjin Kotone graduated at the end of 2025 when her contract expired.
1 source 1h ago
Reporting from 1 source: KAI-YOU.
Why it matters
The announcement covers a gap of roughly ten months in which the account kept posting under a departed performer, which is why the agency now has to sell a cast change rather than a graduation.
Key Facts
- SPIRAL STAIRS STUDIO announced on November 1 that Tenjin Kotone's performer graduated at the end of 2025 on contract expiry.
- Tenjin Kotone's X account and YouTube membership content continued to be updated after the end of 2025.
- Tenjin Kotone will resume activities with a new performer on November 11.
- Tenjin Kotone debuted on April 27, 2018, with character design by illustrator Noizi Ito.
The agency kept Tenjin Kotone's X and YouTube membership content running after that date, so the change went unnoticed. A new performer takes over the character on November 11.
Tenjin Kotone debuted on April 27, 2018, with character design by illustrator Noizi Ito, and built her reputation on singing. She released the original song "Fu Aa Yuu Nante Iwanaide" in July 2018, joined Universal Music in 2020 and made her major debut that December as Kotone, then moved to SPIRAL STAIRS STUDIO in April 2024.
The agency says the outgoing performer's contract expired at the end of 2025. Her accounts stayed active in the months after, which is why the report drew surprise. The replacement starts on November 11.
Written with AI by Yomimono from the 1 cited source below, including Japanese-language reporting where cited. See our editorial policy.
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