Episode 3
S1, E3: After creating five specimens, Shiro's final target is his son, Itaru. Despite the memories with Itaru, Shiro only sees his son as a butterfly. Shiro makes up his mind to create his last specimen.

S1, E3: After creating five specimens, Shiro's final target is his son, Itaru. Despite the memories with Itaru, Shiro only sees his son as a butterfly. Shiro makes up his mind to create his last specimen.