On the official Twitter account of the anime adaptation of “Insomniacs After School” (jap.: “Kimi wa Houkago Insomnia”), it was announced that it will air on Japanese TV starting April 10, 2023. You can find a new trailer as well as a visual below.
Kimisomu Anime being made by LIDEN FILMS
“Insomniacs After School” is being produced at the LIDEN FILMS studio under the direction of director Yuuki Ikeda. Rintarou Ikeda (“Science Fell in Love”) is penning the script, while Hiroaki Fukuda (Key Animation on “I Want to Eat Your Pancreas”) is creating the character design.
The opening song “Itsu Aetara” is by Japanese singer-songwriter aiko, who was responsible for the ending of the drama film “A Silent Voice.” The ending song “Lapse” is contributed by the Japanese band Homecomings. A simulcast has not yet been announced.
The anime is based on the manga of the same name by Makoto Ojiro, which has been published in “Big Comic Spirits” magazine since May 2019. Shogakukan brought so far ten volumes in the Japanese trade.
Insomniacs After School Anime Trailer
Insomniacs After School Anime Visual

Insomniacs After School Story
It all started with the death of one of the Astronomy Club’s members. From this, the rumored ghost of the club came to life.
Grumpy insomniac Ganta Nakami stumbles across the moderately rebellious yet easygoing Isaki Magari in the Astronomy Club’s abandoned observatory. Magari is jolted awake and tries to escape from the scene, only to have a broken door prevent that, forcing the two inside. The two forge an unlikely friendship, leading them to use the observatory as a safe space for them to interact.
Kimi wa Houkago Insomnia follows the insomniacs Nakami and Magari’s time in the starlit observatory as they help each other cope with insomnia and the lasting effects it has on student life.