Ye Wanwan from the 23rd century takes out a loan to buy a spaceship to save her childhood friend. She plans to travel to the Da Ze era to steal the royal treasure, Shenlong. However, her spaceship malfunctions as it passes through a wormhole, causing her to accidentally fall into the bath of Shen Huan, the most handsome man of Da Ze. In her quest for the treasure, she stays at the mansion of this notorious playboy but is soon dragged into a power struggle.
Shan Yi Fan suffers from a strange disease; if he has five seconds of physical contact with someone he will change into that person's appearance and won't be able to change back until three days later. One day, he transforms into Luo Luo's cheating ex-boyfriend during the middle of their arguing and she mistakenly follows him instead, only to accidentally kiss. Surprisingly he transforms back to himself! With Luo Luo's kiss being his antidote, what else is a domineering CEO to do but to keep her by his side at all costs.