To keep using their school's abandoned observatory as a refuge, two sleepless high school students decide to revive the defunct astronomy club.
森七菜
as Isaki Magari
奥平大兼
as Ganta Nakami
桜井ユキ
as Usako Kurashiki
萩原みのり
as Yui Shiromaru
Kaisei Kamimura
as Tao Ukegawa
安斉星来
as Kanami Anamizu
永瀬莉子
as Motoko Kanikawa
川﨑帆々花
as Mina Nono
工藤遥
as Haya Magari
斉藤陽一郎
as Isaki's Father
田畑智子
as Mother of Isaki's Childhood Friend
緒方義博
as Director of a Historical Archive
