Craftsman Kuroda was a master at creating Hybrid Child - extraordinary beings infused with emotions and consciousness that reflect the love bestowed upon them. As neither machines nor dolls, Hybrid Child require love to thrive, although they are not real humans. Young Kotarou Izumi, the heir to the Izumi family, brings an abandoned Hybrid Child named Hazuki, whom he found in the trash, into his household. His family is unhappy about this and tries to get rid of Hazuki several times while Kotarou is not around. Their love, however, grows stronger as they overcome these obstacles. After 10 years, they realize that Hybrid Child may not live forever, which is a horrifying truth. The artful collection of three short love stories, Hybrid Child, showcases the unique relationships between these artificial beings and their families.