It was a vacation that they will never forget. Shen Xi is a peppy college student who is majoring in dance but loves to eat just a little too much. He Zhi Zhou is an aloof, moody engineering major at a nearby university. While Shen Xi goes on vacation with a group of her girlfriends, Zhi Zhou also is on vacation with his engineering friends at the same location. During the vacation, Shen Xi falls into the water at the same time that Zhi Zhou is struck by lightning! They end up swapping souls, and Zhi Zhou suddenly finds himself in the body of Shen Xi and Shen Xi finds herself inside the body of Zhi Zhou. While Shen Xi is delighted by the wonders of her new body and the fact that she can now get close to her crush, who happens to be one of Zhi Zhou's roommates, Zhi Zhou is freaked out about being stuck inside a woman's body. What will become of this soul-swapping duo?