The Hybrid Child, often misinterpreted as a mere plaything, is actually a remarkable toy capable of human-like skills, including emotion expression and book reading. The extent of their abilities depends solely on the affection bestowed upon them by their owner. Providing them with the utmost affection will result in their optimal growth and development.
Kotarou Izumi has been inseparable from his Hybrid Child, Hazuki, for a decade, believing that their bond would last forever. However, his world shatters when Hazuki unexpectedly collapses.
Through three concise stories, Hybrid Child portrays the struggles faced by both the Hybrid Children and their owners.