Shen Jin's obsessive, pathological love and extreme need for control destroy their relationship, driving Su Yuan'an to flee with a broken heart. They love each other deeply, yet hurt each other all the same.
When they reunite as adults, Shen Jin discovers that Su Yuan'an is about to settle into a peaceful life and has someone close by. His pathological fear of losing him explodes.
Shen Jin uses his power and resorts to any means necessary to ruin Su Yuan'an's life, career, and connections, forcibly keeping him by his side.
Unable to understand love, Shen Jin expresses his feelings through control, suspicion, and cruelty, wounding Su Yuan'an again and again until he exhausts his tenderness.
Su Yuan'an grows cold and disillusioned, then leaves for good. Having lost his only source of light, Shen Jin falls apart and descends into madness, embarking on an all-out quest to win him back and atone.
As layers of past misunderstandings are unraveled, the two face the bond they shared as youths and the deep love they feel for each other. At last, they overcome their estrangement, save each other, and stay together.