Yoshiyuki Sakurai doesn't remember much from his early childhood. He is raised by Sakura Yoshino from the original Da Capo. Junichi Asakura is his neighbor, and grandfather to his close friends Otome and Yume, who he refers to as his sisters.

His childhood friend, Koko, confesses her feelings to Yoshiyuki. When Yoshiyuki accepts, he begins a new learning experience. Will their love survive the trials of robots, school idols, and sisters?

comedy drama supernatural harem h-game sci-fi robots