Cheng Mo is recognized as a "turtle loser" - he is slow in doing things and is ridiculed by the whole school as a "squirming high school student". But he has an unknown secret: his soul can be forcibly exchanged with anyone, and the duration is random. In an accident, he swapped bodies with Lu Heming, the strongest villain on campus and a talented fighter. From then on, Cheng Mo took Lu Heming's skin and used turtle-type fighting skills to drag each master to collapse; Lu Heming was trapped in Cheng Mo's useless body and watched his reputation being "ruined". What's even more confusing is that the swap is not controlled at all - the two may switch back at any time during class, in the shower, or even during a fight. When the villain begins to understand the loser's persistence, and when the loser begins to take over the villain's connections and resources, a hilarious counterattack about identity, trust and growth begins.
