On Valentine’s Day, Lin Hai is stuck working overtime under his demanding boss. While his friends post about vacations and dates, he awakens a "friend return system" that rewards him with luxury cars and villas every time someone flaunts their wealth. After being falsely accused and fired by his classmate, Lin Hai uses the system to amass a fortune and gain new skills, including world-class piano abilities. At a reunion, he stuns everyone with his piano skills and humiliates his classmate Wang Cong in a pool game. Wang Cong causes Shen Xue's company to crash, but Lin Hai saves it with a huge cash injection. In a final showdown, Lin Hai uses the system to win a bet with Wang Cong and exposes his past wrongdoings, taking him down.
