New Details Emerge for 'A Star Brighter Than the Sun' Anime: Cast, Staff, Theme Song Confirmed for October Debut

The highly anticipated anime adaptation of Kazune Kawahara's beloved manga, Taiyou yori mo Mabushii Hoshi (A Star Brighter Than the Sun), is setting the stage for a captivating premiere, with a flurry of exciting new details just unveiled. Fans across the globe are buzzing as the production team confirmed additional prominent cast members who will lend their voices to this heartfelt romantic drama, scheduled to debut on October 2, 2025, across TBS and its affiliated networks.

New Voices Join the Stellar Cast

Among the newly announced voice talents are Hina Youmiya, set to portray the character of Hisui Onodera, and Taito Ban, who will bring Youta Ayukawa to life. The ensemble further expands with Mutsumi Tamura joining as Mio Kagawa, and Ryouta Oosaka, widely recognized for his role in Hataraku Maou-sama!!, taking on the character of Yuushin Izawa. These significant additions promise a powerful and appealing cast, poised to infuse the manga's tender narrative with depth and emotional resonance.

A Glimpse into the World: Visuals and Production Team

Adding to the growing excitement, Studio Kai, the acclaimed animation studio behind the project, has released a stunning key visual and a compelling first promotional video. Both offer a vibrant glimpse into the series' emotional landscape, hinting at the poignant moments and rich character interactions that await viewers.

Director Aya Kobayashi is at the helm of this adaptation, working alongside Yasuhiro Nakanishi, who is responsible for the series scripts, and Jinfeng Zeng, crafting the intricate character designs. The auditory experience is also set to be a highlight, with the announcement that renowned artist Motohiro Hata will perform the opening theme song, Stellar Days, ensuring an emotionally rich soundtrack. Further bolstering the production's visual integrity, Yuki Muranaga has been confirmed as the sub-character designer, and Kenji Masuda will oversee prop design, collectively contributing to the overall high-quality aesthetic.

The Heart of the Story: Manga's Enduring Appeal

Based on an ongoing manga series that has garnered critical acclaim and numerous awards for its sensitive portrayal of youthful romance, Taiyou yori mo Mabushii Hoshi explores the blossoming connection between the unusually tall Sae Iwata and the immensely popular Koki Kamishiro. The narrative delves into the complexities of first love and the vibrant, often tumultuous, emotions of youth.

First announced in early 2025, this latest wave of production details has significantly amplified anticipation for its fall debut, promising a faithful and compelling adaptation that captures the tender and luminous essence of Kawahara's original masterpiece.