Ye Qingtan was going back to China to teach at Beijing University, but the teachers' dormitory had not been renovated yet, so he moved into the home of the grandson of his father's good friend, Mr. Ye.
A naive college student who is eight years younger than him, but he is quite cute.
Later
Mu Xingji: How could such a coincidence happen! I like him! He doesn't have a partner yet!
Mu Xingji: Doesn't it mean I want him to be my boyfriend~
Ye Qingtan:... This guy seems even more stupid?
