Sora Amamiya Takes on the Role of Isaki's Elder Sister in Insomniacs After School Anime

(Last Updated On: May 30, 2023)

Sora Amamiya, the latest addition to the cast of the television anime adaptation of Makoto Ojiro’s Insomniacs After School (Kimi wa Hōkago Insomnia) manga, was announced on Tuesday. Set to debut in the ninth episode on June 5, Sora will portray Haya Magari, Isaki’s elder sister, as confirmed by the official website.

The anime made its debut in Japan on April 10 and is being simulcast on HIDIVE. Yuki Ikeda helms the directorial duties at LIDEN FILMS, while Rintarou Ikeda (known for their work on “Science Fell in Love, So I Tried to Prove It” and “The Seven Deadly Sins: Imperial Wrath of The Gods”) oversees and writes the series scripts. Yuki Fukuda (renowned for “Plunderer”) takes charge of character design. Yuki Hayashi (renowned for their work on “Haikyu!!,” “My Hero Academia,” and “Gundam Build Fighters”) composes the music. The show’s ending theme song, “Lapse,” is performed by Homecomings.

Viz Media has acquired the English license for the manga and released its inaugural compiled volume on March 21. The manga’s captivating narrative unfolds around two restless teenagers who seek solace in their school’s astronomy observatory. Ganta Nakami, perpetually deprived of sleep, grapples with irritability and unpopularity among his peers. However, within the abandoned observatory, once frequented by the now-defunct astronomy club, Nakami discovers an ideal sanctuary for repose—one he doesn’t have to endure alone. In a serendipitous encounter, he encounters Isaki Magari, a fellow insomniac, and their shared isolation forms the foundation of an unlikely friendship.

Within the school’s observatory, rumors shrouding the misfortune of the previous astronomy club dissuade others from venturing near, rendering it the perfect clandestine refuge for Nakami and Magari to seek respite. Regrettably, the school administration cannot endorse their unsanctioned use of the space. However, if a new astronomy club were to materialize, perhaps these two sleep-deprived individuals could find a genuine sense of belonging—a place they could finally call home.

The ongoing manga, which Ojiro commenced in May 2019 within Shogakukan’s esteemed Big Comic Spirits magazine, has also served as an inspiration for an upcoming live-action film set to debut in June.