TV Insomniacs After School Insomniacs After School 7.546/10 by 54 users Ganta Nakami is a high school student who suffers from insomnia. He meets Isaki Magari, a girl with the same condition. A relationship forms as they share a secret and catch up on their sleep in their school’s abandoned observatory. Details Casts Posters Images Title Insomniacs After School Alternative Titles Kimi wa Hōkago Insomnia, Kimi wa Houkago Insomnia, Kimisomu, 君ソム First Air Date 2023-04-11 Last Air Date 2023-07-04 Number of Episodes 13 Number of Seasons 1 Genres Animation, Comedy, Drama, Networks TV Tokyo, Casts Gen Sato, Konomi Tamura Plot Keywords , Ganta Nakami (voice) Gen Sato Isaki Magari (voice) Konomi Tamura