Takemoto Takeru, an ordinary high schooler, encounters a strange light during a bike delivery for his part time job.When he stops and searches the surroundings, he observes a cute girl named Hikari climbing out of a sparkling cocoon in the forest.Takeru instantly falls for her at first sight, but suddenly a monster appears at the same spot and attacks the girl.This is a story about the exciting days of the mysterious girls Hikari and Akari, Takeru's childhood friend Nishino Mari and his classmates, who all come onto the scene.Actually these are just ordinary days, but in Hikari's point of view, they are wonderful.