The key visual and first promotional video for the TV anime A Star Brighter Than the Sun, based on Kazune Kawahara’s work, have been released. The update also unveiled additional cast members and revealed the opening theme. The series will premiere on October 2.
The opening theme, titled “Stellar Days”, will be performed by Motohiro Hata. In the first PV, fans can hear the voices of the main characters along with a preview of Hata’s song.
Official Trailer:
Key Visual:

ADDITIONAL CAST:
Hina Yomiya as Hisui Onodera
Taito Ban as Yota Ayukawa
Mutsumi Tamura as Mio Kagawa
Ryota Osaka as Yushin Izawa
MAIN CAST:
Minori Fujidera as Sae Iwata
Yuki Ono as Koki Kamishiro
STAFF:
Director: Aya Kobayashi
Series Composition: Yasuhiro Nakanishi
Character Design: Jinfeng Zeng
Music: Natsumi Tabuchi, Miki Sakurai
Animation Production: Studio KAI
A Star Brighter than the Sun is currently serialized in Bessatsu Margaret and has 11 collected volumes released in Japan. The 12th volume is scheduled for release on August 25, 2025 (JST). VIZ Media describes the manga as follows:
Sae has always been taller and stronger than the average girl. Koki used to be smaller and weaker than the average boy. But now that he’s in high school, he’s tall and super popular! Will their childhood friendship rekindle…and maybe develop into something more?
Source: Comic Natalie
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