What connects the small Earth with the vast universe is a single, trivial lie.

Sakamoto, the vice-president of the Astronomy Club, is a dull man who works hard at the club's activities every day while harboring feelings for Kuragami, a slightly unusual club member who often dreams of UFOs. One day, a new member, Futaba, joins the club. He has a somewhat unique aura and for some reason is aloof from everyone. However, he seems to have feelings for Kuragami and actively talks to her. Sakamoto somehow doesn't like this...