The reunited PE teacher, Xu Sheng, is still as quick-tempered as ever, with fists and a mouth both hard as stone. When facing Chen Yi, the new art teacher, his refusal to back down practically spills from his eyes.
No one knows what a dark, possessive desire hides beneath Chen Yi's gentle exterior. He is always provoking Xu Sheng ever so subtly, sketching his outline with a paintbrush and weaving a net with his gaze, slowly drawing this bristling beast into his territory. Even fewer know that he was once Gu Jiang, a boy abandoned by his parents and struggling beneath the shadow of bullying. And the person who once came to his rescue with fists flying was Xu Sheng.
Xu Sheng has only his grandmother left as family. The only bright spot in his life is Lin Hao, who is always joking around, until Lin Hao's accidental death brings Gu Yuenan, Chen Yi's never-before-seen father, into the picture.
When the sealed truth is finally exposed, Xu Sheng learns that the person responsible for the fatal car accident that killed his parents was Gu Yuenan, who fled the scene after driving the car. Chen Yi's approach had been burdened with an unspeakable weight from the very beginning. The salvation of their youth has become a cruel irony, and their entanglement today has turned into a sin. Paint from the art room mixed with sweat from the sports field, but it still could not wash away the blood debt between their families.
On the day the truth comes to light, there is no hysterical outburst, only Xu Sheng's resolute silhouette as he turns away. Some debts are destined to make a love born in the shadows shatter completely.
Theme: Love does not always lead to a happy ending