The story tells that in 2060, the Earth has a population explosion, which has caused serious social problems. In order to curb the population, anyone who has more than one child must be executed. Unexpectedly, a super playboy made 100 women pregnant, resulting in the birth of 100 children with the same lustful gene (DNA) scattered around the world. In order to solve this terrible problem, the future government sent a girl envoy, Jialin, to travel through time and space to the 1990s to try to find the 16-year-old high school suspect: the super playboy...