Takashi Mikami, a University of Tokyo graduate, joins the Ministry of Education to reform Japan's education but is disillusioned by its reality. Transferred to a private high school, he takes a stand against the authorities, using his role as a teacher to push for change.

Four high school girls in an astronomy club once dreamed of going to space together. Years later, as adults leading separate lives, they unexpectedly reconnect with their forgotten ambition. Inspired by the idea that an ultra-small satellite might finally make their dream achievable, they reignite their passion and embark on a second youth chasing space.