Secret love and redemption
The brother next door whom Muzi likes is dating the sister Zhou Huaiyu likes, but they fall out of love before they even start dating. Muzi proposes that they date each other, treating each other as someone he likes...
Concept: The five major hormones secreted by love govern the transition from love at first sight to emotional stability. When all the above feelings disappear, will you still say to each other, I still love you to the core of my heart?