Spring has come, and our protagonist, Yukinari, returns home after 7 years. Between his second cousin Sakura, who meets him outside in a full maid outfit, Hotaru, a half-Japanese beauty with a sharp tongue, and the lazy scheming witch Alice - life just got way more interesting!
After seven years, Yukinari Sanada has returned to his hometown in Kanagawa Prefecture, Kamakura City, but something feels... different. Both he and his younger sister, Rikka, transfer into Oumi Academy and hope for a fresh start. However, Yukinari's classmates, a lazy witch and a half-Japanese beauty, won't allow him enjoy his new life for very long.
One summer day, Shun Nanami meets a girl who is the spitting image of his dead sister. She turns out to be a high-tech android indistinguishable from a human being. So begins a touching tale in a world where androids and human beings coexist.