When Nan Chu met Chen Ye for the first time, he was cheating and using her boyfriend behind his back.
Nan Chu had a knot in his heart, which originated from a person he had met once, a long-planned encounter. This accident made Nan Chu want to cut off everything he shouldn't have, including his relationship with Gu Qingye.
Time played a joke on me. It made me realize that a longing took root and sprouted in my heart, but I couldn't stop its growth. I was fooled and tortured and lost the courage to continue, so I could only let it fester deep in my heart. I betrayed you and never loved you, but I fell in love with your good brother.