４月の君、スピカ。

Saotome Sei, a clumsy high school girl who accidentally enrolls in an elite school after failing her exams, feels out of place until she meets Mizuki, a quiet astronomy enthusiast, and Taiyo, a sharp-tongued academic star. Invited to join their small astronomy club, Sei finds a sense of belonging as she navigates her growing feelings for Mizuki and her rivalry-turned-friendship with Taiyo, who hides his own affection for her. Set against a backdrop of stargazing and school life, this sweet tale blends romance, friendship, and self-discovery, following a girl finding her shine among the stars and the boys who light up her world.