by The upcoming Summer 2026 anime
“The Pure and Lovely Girl at My New School Turns Out to Be My Childhood Friend Who I Thought Was a Boy” (commonly known as Tenbin)
has officially revealed its opening theme song.
The track, titled “Natsu ni Kasanete,” will be performed by DIALOGUE+, bringing a bright and emotional musical identity to this highly anticipated romantic anime.
Opening Theme “Natsu ni Kasanete” A Song of Summer and Youth
The opening theme “Natsu ni Kasanete” (Layered in Summer) perfectly captures the essence of the anime’s story.
Song Highlights:
- Inspired by summer scenery and sunflowers
- Features a light, energetic, and emotional melody
- Reflects themes of youth, nostalgia, and reunion
A preview of the song is already available in the anime’s promotional video (PV) on YouTube, giving fans an early taste of its uplifting tone.
Producer Tomoya Tabuchi Shares Creative Vision
The opening theme is produced by
Tomoya Tabuchi, a well-known composer and member of:
- UNISON SQUARE GARDEN
- THE KEBABS
- Q-MHz
Key Message from Tabuchi:
He explained that the song was created based on a request for:
“a track that evokes summer scenery and sunflowers.”
Creative Goals:
- Capture the feeling of clear blue skies and bright sunlight
- Express blooming flower fields through melody
- Add a sense of speed and emotional intensity
He also emphasized that the song reflects:
- The passage of time
- Emotional distance between characters
- The gradual growth of relationships
About the Anime ‘Tenbin’ (Beginner-Friendly Overview)
The anime is based on a light novel by
Hibari Yu, with a manga adaptation illustrated by
Juna Oyama, currently serialized on Dora Dora Flat♭.
Story Summary:
The story follows Hayato, a boy who transfers from the countryside to a city high school. There, he reunites with his childhood friend:
- Haruki, whom he believed was a boy
However, Haruki is now a beautiful girl, leading to:
- Confusion and emotional tension
- Rekindled friendship and romance
- A heartfelt coming-of-age journey
Why the Opening Theme Matters
In anime, the opening theme plays a key role in shaping the viewer’s experience.
For ‘Tenbin,’ the OP Song:
- Sets the emotional tone of the story
- Reflects the summer-themed atmosphere
- Enhances key themes like:
- Friendship
- Love
- Growth
“Natsu ni Kasanete” is expected to become one of the standout anime songs of Summer 2026.
New Updates and Expectations
With the opening theme now revealed, fans can look forward to:
- Full version of the opening sequence
- Official song release and streaming platforms
- Additional trailers and character previews
- International streaming announcements
The combination of:
- A strong story
- Emotional music
- Talented production team
positions Tenbin as a promising romance anime of the season.
Final Thoughts
The collaboration between DIALOGUE+ and Tenbin adds a vibrant and emotional layer to the anime.
With:
- A beautifully crafted opening theme
- A heartfelt story of reunion and growth
- And a talented creative team
Tenbin is shaping up to deliver a memorable and emotionally engaging experience for viewers.
