Ye Jin is a notoriously evil person - cold-blooded and cruel. This is the label that has been attached to him since childhood. No one really accused him wrongly.
When he was six years old, his cat was bitten to death by a vicious dog in a nearby alley, and he beat the dog to death alone with a wooden stick. You know, that dog scares adults. Ye Jin's right calf was bitten to a bloody pulp. From then on, he became a famous bad boy in the apartment building, and he became worse and worse, and his reputation became more and more famous.
Ye Jin's father died in an accident when he was five years old. His mother married him into the Ye family and changed his surname to Ye.