How did Jiayou and Shao Hua meet each other in the love of A Million Brides Without Regret?

One night, a man broke into Jiayou's room and killed Jiayou. Then Jiayou accidentally killed someone with a knife. Jiayou also hurt people in self-defense, and was later arrested by Wang Shaohua, because Wang Shaohua later wanted to sue him. Min Jun said Jiayou was your son. Then I don't know. Don't blame me if it's not enough.