The chapter opens with the section chief and his brother, bang qiange. The section chief asks the brother where his luggage is, and the brother replies that he will take him back to the school. He tells his brother that his parents have always hoped that he and his younger sister would inherit their parents' careers. Fortunately, the younger sister has an extraordinary talent, and as a result has grabbed most of the family's attention. But deep inside, he is happy as he can still enjoy his childhood. Now that he thinks about it, he realizes that his sister must have suffered a great deal. Later, misfortunes fly, and only his sister survives. Looking at his sister's broken face, he gave up his dream of being a marine, and selfishly promised to protect her forever. He explains that he was actually lonely, and unlike his intelligent younger sister he was lonely and fragile, that is, he was her and she was me. The principal's Office asks why there are two souls with the same energy? The door of eternity needs two souls to complete the energy source before it can open, but only the strength of the "good side" can maintain the balance of time.