When Jiang Xuanze first met Lin Muchen: This classmate is so aloof.
When Lin Muchen first met Jiang Xuanze: This guy is such an idiot.
Later on
Jiang Xuanze watched Lin Muchen walk into class in the morning: My boyfriend is so handsome.
Lin Muchen watched Jiang Xuanze cook for him: He's pretty good at taking care of people.
At last
Jiang Xuanze looked at the gates of Peking University: We're here.
Lin Muchen looked at the gates of Peking University: We're here.
Young and reckless, destined for greatness.
For the rest of my life, I'll be with you until we're old.
-- To us, carefree back then
Theme: Everyone has someone important to them in their youth