Ganta Nakami was requested to go to the observatory to pick up some cardboard boxes while getting ready for a cultural festival by a girl in his class while he dozed off in a corner of the classroom. The ghosts of the previous female astronomy club members are allegedly haunting the observatory, which has been turned into a storage space.
He recognizes his classmate Isaki Magari as she is asleep inside the observatory as he makes his way there. She abruptly awakens and is startled to have Ganta staring at her. In an effort to calm one another down, they talk about their shared issue of insomnia.
The series is being composed by Rintaro Ikeda, the characters are being created by Hiroki Fukuda, and the music is being created by Yuki Hayashi. Cast members of the anime include:
- Konomi Tamura as Isaki Magari
- Gen Sat as Ganta Nakami
- Natsumi Fujiwara as Kanami Anamizu
- Sumire Morohoshi as Mina Nono
- Haruka Tomatsu as Yui Shiromaru
- Seiichiro Yamashita as Tao Ukegawa
- LYNN as Motoko Kanikawa
- Mamiko Noto as Usako Kurashiki
- Sho Karino as Rui Haida
Outside of Japan, HIDIVE is streaming the anime, and it is described as:
High school student Ganta Nakami struggles with insomnia. He meets Isaki Magari, a young woman with the same illness, one day. They share a secret and catch up on sleep in the observatory of their school, where they develop an unusual yet extraordinary bond.
Makoto Ojiro, Shogakukan / "Kimi Somu" Production Committee's official website