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A Star Brighter Than the Sun anime is by far one of the most-awaited romance adaptations of 2025. An adaptation of Kazune Kawahara’s popular shojo manga, the series tells a story about friendship and love. Fans have been waiting since the announcement earlier this year.
And now the anime is becoming real. A Star Brighter Than the Sun anime premieres in Japan on Thursday, October 2, 2025, at 11:56 a.m. on 28 TBS stations. Amazon Prime Video will stream it worldwide the same day, so fans everywhere can watch Episode 1 as soon as it drops.
Excitement for the A Star Brighter Than the Sun anime is global, so exact release times matter. Here’s when viewers can expect to tune in:
- Japan (JST): 11:56 AM
- Pacific Time (PT): 7:56 PM, October 1
- Eastern Time (ET): 10:56 PM, October 1
- Brazil (BRT): 11:56 PM, October 1
- UK (BST): 3:56 AM, October 2
- Central European Time (CET): 4:56 AM, October 2
- India (IST): 8:26 AM, October 2
- Philippines (PHT): 10:56 AM, October 2
- Australia (AEST): 12:56 PM, October 2
Authored and illustrated by Kazune Kawahara, it has already developed a large following of shojo readers. The manga tells the story of two childhood friends, Sae Iwata and Koki Kamishiro, as they mature and attend high school. Sae was always a big girl, bigger and stronger than most girls. Koki, on the other hand, was weak as a boy but has now become tall and attractive. Their relationship begins to change as Sae realizes her feelings for Koki. This discovery leads to a sweet yet complicated high school romance.
The manga was a big hit, winning the 14th An An Manga Award in 2023 and ranking eighth in the Kono Manga ga Sugoi! guidebook. No wonder the A Star Brighter Than the Sun anime is drawing so much attention before its release.
Cast and characters of the A Star Brighter Than the Sun anime
One of the most exciting aspects of the A Star Brighter Than the Sun anime is its strong voice cast.
- Sae Iwata – Minori Fujidera
- Koki Kamishiro – Yuki Ono
- Hisui Onodera – Hina Yomiya
- Yota Ayukawa – Taito Ban
- Mio Kagawa – Mutsumi Tamura
- Yushin Izawa – Ryota Osaka
- Subaru Kamishiro – Haruka Shiraishi
These characters make up the central group that will bring Kawahara’s romantic comedy to life.
The Team behind the A Star Brighter Than the Sun anime
The anime A Star Brighter Than the Sun is being made by Studio Kai. The studio did the second and third seasons of Uma Musume Pretty Derby. The anime will be directed by Sayaka Kobayashi, who worked on Ochibi-san. Yasuhiro Nakanishi from Kaguya-sama: Love is War writes the scripts. Jinfeng Zeng is the one in charge of the character designs. Natsumi Tabuchi and Miki Sakurai, who both worked on 5-toubun no Hanayome, created the music.
There is information about the theme songs of the anime. The opening, “Stellar Days” by Motohiro Hata, delivers a bright and uplifting start to each episode. The ending, “Latest Episode” by Wanuka, provides a gentler, emotional close. Together, they promise to capture both the fun and heartfelt moments of the A Star Brighter Than the Sun anime.
There are already 2 PVs from the movie, which will give you a taste of what to expect. The first teaser revealed the childhood memories of Sae and Koki and foreshadowed their blossoming love. The next PV followed Sae's first love and her battle against those new feelings. In addition to these, several related images have been released, showing the key characters alongside their school profiles. They also highlight the shy but sweet relationship between Sae and Koki.
For anyone outside Japan, the A Star Brighter Than the Sun anime will be available exclusively on Amazon Prime Video. Fans who prefer watching legally and in good quality won’t have to worry about delays or missing episodes.
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Conclusion
A Star Brighter Than the Sun anime seems to be destined to be one of the most promising romance series of 2025. This will be a laugh- and drama-packed adaptation that you can enjoy with or without any knowledge of the story. You just need to block off October 2 on your calendar so you can see how Sae and Koki’s relationship unfolds.
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