The male lead, Bi Xia, once killed two criminals with his own hands and was later found to have acted in legitimate self-defense.
At university, Bi Xia meets the female lead, Yu Jingjing, and falls in love with her at first sight. Yu Jingjing has been cheated on by her ex-boyfriend, Wang Zi, and refuses Bi Xia's attentions, even though they deeply move her.
Wang Li takes the initiative to throw herself into Bi Xia's arms after her cousin is beaten. Bi Xia loses himself in her tender affection.
Wang Li leaves Bi Xia to study in Japan, and his legitimate self-defense case is reopened. Bi Xia discovers that Wang Li betrayed him and is plunged into despair. Just then, Yu Jingjing comes to his side and warms his heart once more.
Shortly before graduation, Bi Xia learns that Yu Jingjing has no plans to live with him. Afraid of falling victim to another honey trap, Bi Xia deliberately grows cold toward her. Yu Jingjing feels that he has toyed with her, and the two break things off completely.
After graduation, they move to different cities, but they both remember the happy times they shared and miss each other dearly.
Yu Jingjing quits her job at a major state-owned enterprise and moves to the city where Bi Xia works. The two embrace once more.