Sana (voiced by Owada Hitomi) has lived in the "research institute" since she was a child and has never set foot in the outside world. She has the superpower to change the objects around her at will, so she is treated as a "dangerous item" and is under heavy supervision. One day, Sana, who could no longer bear it, escaped from the research institute and was immediately hunted by the organization. Sana, who had nowhere to go, met an old man named Kuroroku Kasumura (voiced by Akio Otsuka) in a desperate situation. The kind old man took Sana in. Kuroroku and his granddaughter Sanae (voiced by Toyosaki Aiko) lived a life of dependence on each other. Now that there is an extra girl in the family, life has suddenly become lively. Escaped with Sana, there are also the carefree and free-spirited Hinamigiri Asahi (voiced by Fujiwara Natsumi) and her twin sister Hinamigiri Yacho (voiced by Kito Akari). What the girls have to face is the researchers who are pressing step by step and their confusing life experiences.