Kai (Jinzou Shoujo)

Kai is the main antagonist of the manga Jinzou Shoujo.

Early Life
Not much is known about his early life except that he is an alchemist who studies cloning, creating mythological based creatures and immortality that he lived for 240 Years.

Present
Kai described his work as a bit like combining doctor and life insurance agency and cloned people and have the clones experience virtual reality paradise until they get used as replacement bodies by killing the clones and transplanting the brains of his clients into the bodies of the clones he killed and he also runs shinseimei academy and most of the students are children of wealthy people and seventeen years ago Satonaka's father came to Kai for two clone bodies for his son the two clones were growing well in their life support tanks until they died in their life support tanks and at the same time Satonaka suffered a car accident then his assistant revealed a third clone whom the assistant give to two people who adopted the clone and named the clone Misumi Yutaka then Kai killed his assistant and sent his creation the Crow to take Misumi Yutaka's body and killed Misumi Yutaka's adopted parents and Kai tells the Crow to dispose of the Brain only for the Crow to leave it in an alley to eat another human eventually Misumi Yutaka's brain is found by Anjin Hiruma and is now goes by the name Nina and Kai eventually found out about the Crow's failure and orders the Crow to kill Nina to hide evidences of his illegal activity.