A possible concise summary is:
Tong Nian, a young computer science student, is in love with Han Shangyan, a former professional gamer and the leader of Team K&K. She accidentally gives him a necklace that her aunt asked her to buy for her grandfather. She also gets drunk and kisses him, but he doesn't reciprocate her feelings. She decides to break up with him and cries to her parents and friends. Meanwhile, Han Shangyan is busy with preparing his team for a gaming competition and dealing with his family issues. He borrows money from his friend Bai to buy back the necklace from Tong Nian. He also tries to cheer up Demo, one of his team members, who is depressed after his parents' divorce. He gives him some sweets and shares his own tragic past. Tong Nian and Han Shangyan have a brief encounter at the airport, where she returns the necklace to him. He is surprised by her gesture and starts to have some feelings for her.
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