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 unveiled its first main promotional video (PV).
Alongside the PV release, it has been officially announced that the opening theme song, “Natsu ni Kasanete,” will be performed by DIALOGUE+, adding a bright and emotional tone to this coming-of-age romance.
First PV Showcases Emotional Reunion and Nostalgic Promises
The first main PV beautifully captures the heart of the story, beginning with a touching childhood moment:
- Young Hayato and Haruki make a pinky promise to always stay friends
- A time skip showing Hayato moving to the city for high school
- An emotional reunion with Haruki after seven years of separation
The PV blends nostalgia, romance, and personal growth, giving viewers a glimpse into the evolving relationship between the two characters.
Story Overview – A Unique Childhood Friend Romance
Based on the light novel by Hibari Yu, this anime offers a fresh twist on the classic childhood friend trope.
Beginner-Friendly Plot Summary:
Hayato Kirishima, who grew up in the countryside, transfers to a high school in the city. There, he unexpectedly reunites with his childhood friend:
- Haruki Nikaido, whom Hayato always believed was a boy
However, Haruki is now a beautiful and charming girl, leading to confusion, emotional tension, and the rekindling of old bonds.
The story explores:
- Rediscovered childhood friendship
- Personal growth and identity
- The passage of time and changing relationships
- A gentle, summer-themed coming-of-age romance
Additional Characters Introduced in the PV
The PV also introduces several supporting characters who enrich the story:
- Himeko Kirishima – Hayato’s younger sister
- Minamo Mitake – Hayato’s classmate
- Saki Murao – a shrine maiden from their hometown
These characters bring depth, humor, and emotional layers to the narrative.
Opening Theme: “Natsu ni Kasanete” by DIALOGUE+
The opening theme song “Natsu ni Kasanete” plays briefly in the PV, setting a bright yet emotional tone.
About the Song:
- Artist: DIALOGUE+
- Theme: Summer scenery, youth, and emotional memories
- Style: Energetic with a nostalgic feel
Producer’s Comment:
Tomoya Tabuchi, general producer of DIALOGUE+, shared:
The song was created to evoke images of blue skies, sunshine, and blooming sunflowers, while capturing the speed and emotional intensity of a coming-of-age story.
He also emphasized that the track reflects the distance, time, and evolving emotions between Hayato and Haruki.
Production Details and Staff
Key Staff:
- Original Work: Hibari Yu (Kadokawa Sneaker Bunko)
- Director: Xu Chuanfeng
- Series Composition: Akao Deco
- Character Design: Kurahashi N. Nao
- Music: Ryosuke Nakanishi, Naoki Tani, Yuri Morita
- Sound Director: Taiki Yamaki
- Animation Studio: project No.9
- Music Production: Pony Canyon
Voice Cast
- Haruki Nikaido: Ikumi Hasegawa
- Hayato Kirishima: Shunichi Toki
- Himeko Kirishima: Miharu Hanai
- Minamo Mitake: Natsumi Haruse
- Saki Murao: Fuka Izumi
Broadcast Information
- Release Date: July 2026
- Channels: TOKYO MX, BS Fuji, and others
- Streaming: Expected on major anime platforms (to be announced)
What Makes ‘Tenbin’ Stand Out?
This anime offers a refreshing take on romance with:
- A twist on the childhood friend trope
- Strong summer atmosphere and visuals
- Emotional storytelling focused on relationships
- Themes of identity and perception
It’s perfect for fans who enjoy:
- Romantic slice-of-life anime
- School dramas
- Emotional reunions and character growth
Final Thoughts
With its heartwarming premise, nostalgic visuals, and emotionally rich storytelling, Tenbin is shaping up to be one of the most anticipated romance anime of Summer 2026.
The first PV successfully captures:
- The innocence of childhood promises
- The complexity of reunion after years apart
- And the beauty of growing closer again
Combined with music by DIALOGUE+, this anime promises a memorable and emotionally engaging experience.
