All My Past Lives Were Villains

Li Huan is struck by lightning while walking and suddenly awakens memories of his past lives. He discovers that he can return to them, but why were all his past selves villains?

In his previous life, he was Ximen Qing. The life before that, he was actually Yue Buqun. And the one before that... Good grief, the great villain Duan Yanjing!