Bai Yang has trained hard in badminton since childhood, only to be cut from the provincial team. While working as a practice partner at a club, he meets a mysterious, laid-back man. The man's casual winning shot catches him off guard. In full view of everyone, the man lazily raises an eyebrow and asks, “Can you jump-smash, kid?” It is only when Bai Yang spots the tracksuit in the man's wardrobe, embroidered with a five-star red flag and a world champion badge, that he realizes: this carefree man is none other than the legendary name of the badminton world…
