- Opening status: No official opening theme for The Guy She Was Interested in Wasn't a Guy at All anime has been announced yet as of October 2026.
- Premiere window: The anime adaptation is scheduled to premiere in 2027, streaming on Crunchyroll.
- Music matters: Rock and record-store culture define the manga, so the opening's musical direction is a major fan focus.
- Official sources: Follow the official anime site and the author's X account for theme announcements.
- Series scale: Over 2.25 million copies sold and 2 million+ social followers worldwide.
Anime Opening: What Has Actually Been Announced
As of October 2026, no opening theme, artist, or song title has been officially confirmed for The Guy She Was Interested in Wasn't a Guy at All anime adaptation. The series — Sumiko Arai's award-winning yuri manga about Aya Oosawa, Mitsuki Koga, and a record-store misunderstanding — is scheduled to premiere in 2027 on Crunchyroll, per the official teaser.
Announcements of opening and ending themes for anime adaptations typically arrive in a predictable sequence, usually within three to six months before broadcast. This guide tracks what is confirmed, what remains unknown, and where to verify each new detail.
Confirmed adaptation facts:
| Detail | Status | Official Source |
|---|---|---|
| Anime adaptation | Confirmed | Official anime site |
| Premiere year | 2027 | Official teaser / Crunchyroll |
| Streaming platform | Crunchyroll | Official teaser |
| Opening theme artist | Not yet announced | Awaiting official reveal |
| Ending theme | Not yet announced | Awaiting official reveal |
| Animation studio | Not yet announced | Awaiting official reveal |
Unofficial "opening" videos using the series' name circulate widely on video platforms. Unless a video is posted by the official anime accounts, KADOKAWA, or Crunchyroll, treat any claimed opening theme as fan-made speculation.
Why the Opening Theme Matters So Much for This Series
Music is not decoration in this story — it is the core narrative device. Aya and Mitsuki's relationship begins and develops through rock records, headphones, and the record store where Mitsuki works. That makes the anime opening more than a formality here; it is a statement about how faithfully the adaptation will translate the manga's musical identity.
In the author's official interview with uDiscover Music, Sumiko Arai discusses how rock culture and record-shop atmosphere are woven into the creative foundation of the series. Fans reasonably expect the opening to reflect that alternative, guitar-driven mood rather than a generic pop intro.
Rock Atmosphere
- Album covers, vinyl, and headphones define the manga's visual language
- Opening visuals likely spotlight the record store setting
- Expect references to the series' neon-on-charcoal color identity
Character Contrast
- Aya's expressive gyaru style vs. Mitsuki's understated cool
- The opening is the first chance to see both personas in motion
- Dual identity imagery fits the premise perfectly
Musical Identity
- An alternative or rock-leaning theme artist would match the source material
- Insert songs may reference the bands Aya and Mitsuki bond over
- Music supervision details are still unrevealed
When the opening is announced, check whether the artist has an alternative or indie-rock background. That choice — more than the animation itself — will signal how seriously the production treats the manga's music DNA.
When the Opening Theme Will Likely Be Revealed
Theme announcements follow a standard pattern in the anime industry. Based on how comparable adaptations roll out information, here is a realistic timeline for the 2027 premiere.
| Phase | Typical Timing | Expected Information |
|---|---|---|
| Early promotion | 12+ months before air | Adaptation confirmation, teaser PV |
| Mid promotion | 6-9 months before air | Studio, main cast, key visual |
| Late promotion | 3-5 months before air | Opening/ending theme artists, full PV with theme audio |
| Final stretch | 1-2 months before air | Broadcast date, exact premiere time |
Bookmark the official anime site
The official English site and Japanese site publish news first, including staff, cast, and music credits.
Follow the official channels
The author's verified account @agu_knzm on X and the official anime social accounts share theme reveals as they happen.
Watch Crunchyroll announcements
As the confirmed streaming platform, Crunchyroll promotes new PVs and theme news for its upcoming lineup.
Verify before sharing
Cross-check any claimed opening song against the official anime site or KADOKAWA before treating it as confirmed.
This page is maintained with dated updates. As of October 2026, the opening theme remains unannounced, and any content suggesting otherwise should be treated as speculation.
Series Background: Why Fans Are Watching This Adaptation Closely
The adaptation carries high expectations. The manga won the Web Manga category at the 2023 Next Manga Awards (AniTrendz coverage), and the official anime site reports 2.25 million copies in circulation plus over 2 million social followers — remarkable numbers for a web-originated yuri series.
The English edition is published by Yen Press, and the Japanese original runs under KADOKAWA as 気になってる人が男じゃなかった (KADOKAWA page).
| Recognition | Year | Significance |
|---|---|---|
| Next Manga Awards, Web Manga category winner | 2023 | Top web-manga honor, major visibility boost |
| 2.25M+ copies in circulation | Current | Crosses over from niche yuri to mainstream readership |
| 2M+ social followers | Current | Among the most-followed recent romance manga |
| Anime greenlight with Crunchyroll streaming | Announced | Global distribution secured for 2027 |
The simultaneous English official site and Crunchyroll streaming commitment mean theme announcements and the eventual opening will reach global audiences quickly, with official English support from day one.
Fan Checklist While Waiting for the Opening
Track the Opening Theme Reveal:
- Bookmark the official anime site (kinioto-anime.com)
- Follow @agu_knzm on X for author-side news
- Read the manga volumes via Yen Press while waiting
- Watch the official Crunchyroll teaser for tone clues
- Report fan-made openings instead of sharing them as real
The Yen Press series page lists every available English volume. Starting with Volume 1 gives you the full record-store setup the opening will almost certainly visualize.
FAQ
Q: Has the opening theme for The Guy She Was Interested in Wasn't a Guy at All anime been announced?
No. As of October 2026, no opening theme, artist, or song has been officially confirmed. The anime is scheduled to premiere in 2027 on Crunchyroll, and theme announcements typically arrive a few months before broadcast.
Q: When does the anime premiere?
The official anime website and the Crunchyroll teaser indicate a 2027 premiere. An exact broadcast date has not yet been announced.
Q: Where can I watch the official anime trailer?
The official teaser is available on YouTube via Crunchyroll (video ID TL-IGyJGf-w), and updates are posted on the official anime site at kinioto-anime.com in both Japanese and English.
Q: Will the opening be a rock song?
Nothing is confirmed, but given that rock music and record-store culture are central to the manga's identity, fans widely expect an alternative or rock-leaning theme. Watch official channels for the actual reveal.