A Star Brighter Than the Sun Premieres October 2025

The fall 2025 anime season just got more exciting with the upcoming release of A Star Brighter Than the Sun. Adapted from the beloved manga by Kazune Kawahara, the anime will premiere on October 2, 2025 at 23:56 JST on TBS and its affiliates. Before its domestic broadcast, the series already had its world premiere at Anime Expo in the United States this past July, where it received a warm welcome from international fans.

Opening and Ending Themes

The anime’s ending theme is titled Saishin-wa (Latest Episode), performed by Wanuka. The emotional tone of the song is expected to perfectly match the teenage romance at the heart of the story. For the opening theme, renowned singer Motohiro Hata will perform Stellar Days, raising even more anticipation among music and anime fans alike.

Star-Studded Voice Cast

The series brings together a talented lineup of voice actors:

• Minori Fujidera as Sae Iwata

• Yūki Ono as Kōki Kamishiro

• Hina Yomiya as Hisui Onodera

• Taito Ban as Yōta Ayukawa

• Mutsumi Tamura as Mio Kagawa

• Ryōta Ōsaka as Yūshin Izawa

• Haruka Shiraishi as Subaru Kamishiro, Kōki’s close friend

With such a solid cast, expectations for the performances are set high.

Production Team

The anime is being produced by Studio KAI with Aya Kobayashi—who previously worked on Vinland Saga and Spy×Family—serving as director. The series scripts are handled by Yasuhiro Nakanishi, while Jin Feng Zeng is in charge of character design. The soundtrack will be composed by Natsumi Tabuchi and Miki Sakurai, both of whom are well-known for their work in major anime projects.

Story Overview

The manga A Star Brighter Than the Sun debuted in Bessatsu Margaret in June 2021 and has reached 12 volumes as of August 2025. Viz Media has also been releasing the English editions, with the first volume launched on March 4 and the third scheduled for September 2, 2025.

The story follows Sae and Kōki, childhood friends who now attend high school together. Sae gradually realizes her feelings for Kōki, but she soon discovers that she isn’t the only one who loves him. Teenage romance, friendship, and emotional conflicts unfold as Sae navigates the complexities of first love.

Why Fans Are Excited

Author Kazune Kawahara is already well-known among shoujo fans for titles such as My Love Story!!, High School Debut, and Aozora Yell. With her strong track record, it’s no surprise that this adaptation has become one of the most highly anticipated shoujo anime of 2025.

Combining heartfelt storytelling, emotional music, and a powerhouse cast, A Star Brighter Than the Sun is shaping up to be one of the standout romantic anime of the fall season.