After Passing Through the Book, I Became the Master of the Vicious Female Supporting Character

[Book-traveling + kendo + single female protagonist + pretending to be a pig and eating a tiger] Lin Xian couldn't believe that his soul had transcended into the character in the novel he wrote. He thought he could do whatever he wanted with Liu Yu's super high level in the book, but unexpectedly he had to complete the tasks assigned by the system. In order to complete the system's tasks, Liu Yu, who is upright and just, has to rescue the vicious criminal girl Ning Zhiruo and accept her as his disciple and teach her skills...