A spin-off mini-series based on the popular Happy Mahua film of the same name! Ma Jing and boxing champion Ai Feng accidentally swap souls. They go to the roller shutter door to find Xiu Nian, who has faked his death. Just as they obtain a magical potion that can restore their bodies, chaos erupts as everyone starts swapping bodies. After the commotion settles, Ma Jing and Ai Feng are still trapped in each other's bodies. They eventually discover that only by resolving the knots in their hearts can they return to their own bodies—and those emotional knots are connected to their exes.