With summer passing by, old students leaving and new students coming, the relationship between the friends is not the same as before. It is another year in the university with the friendship of nine people growing thicker with every second passing by.
Ending the pride and impetuosity of the freshman years, Lu Qiao Chuan, Zhong Bai, Ren Yi Fan, and the others start their second year. With Yi Xin leaving with her family to study in America, Shi San uses this heartbreak as a motivation to be better in his studies. Xu Lian Qiao, a new student, joins the electrics class and seems to have a mysterious task assigned to her. When the teacher of the class left, the scattered electrics class began to unite.