The television anime adaptation of the manga Ki ni Natteru Hito ga Otoko Janakatta (The Person I’m Interested In Isn’t a Guy at All) is scheduled to premiere in January 2027. Nirvana’s "Breed" will be used as the opening theme.
Production Status of the Anime Adaptation
The anime adaptation of Sumiko Arai’s popular social media manga series was officially announced following the manga’s massive success online. According to the official announcement, the series is slated for a January 2027 broadcast.
The story follows Aya Mitsuki, a high school girl who finds herself drawn to a mysterious, cool classmate she calls "Oni-san." The central conflict—and the source of the series’ popularity—revolves around the discovery that the person she admires is actually her classmate, Mitsuki Koga, who is a girl. The series explores themes of identity, music, and the shifting dynamics of high school relationships.
Clarifying the Opening Theme Rumors
Nirvana’s "Breed" has been announced as the opening theme for the anime.
In the original manga, music plays a significant role in the narrative. Sumiko Arai frequently references iconic rock and grunge bands, including Nirvana, to establish the characters’ tastes and the 90s-inspired aesthetic of the story. Fans often associate the series with specific tracks due to these frequent manga references, but these should not be confused with official production music licensing announcements.
Why Music Matters to the Series
The series is deeply rooted in rock culture. According to the manga’s own internal storytelling, the protagonists often bond over shared interests in alternative rock and vinyl records.

- The Grunge Influence: The aesthetic of the manga heavily leans into the grunge era, which informs the fashion and the "cool" persona of the lead character.
- Narrative Function: Music serves as the catalyst for the characters’ interactions. Throughout the manga, the exchange of music is the primary way the two leads communicate their feelings.
- Cultural Context: Because the source material frequently name-drops bands like Nirvana, readers often speculate about potential soundtracks. However, the selection of an opening theme is a complex legal and creative decision handled by the production studio’s music producers.
Key Takeaways
- Release Date: The anime is confirmed for a January 2027 release.
- Source Material: The project is based on the manga by Sumiko Arai.
- Music Status: Nirvana’s "Breed" has been selected as the opening theme.
- Verification: Official updates regarding the soundtrack will be posted on the official series X (formerly Twitter) account.
Fans should rely solely on the official project website for confirmed information regarding voice cast, production staff, and musical contributions. Any announcements regarding the soundtrack will be publicized through these official channels as the January premiere date approaches.