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.
A story revolving around a complicated romance between the Crown Prince of Da Xuan, the Princess of Beichu, the son of the Prime Minister and a political conspiracy brewing in the palace.
Ye Qing Ge (Zhao Yu Xi) and Su Yu (Liu Ji Kai) become a married couple due to an alliance between their respective kingdoms. Upon discovering each other's secret, they begin to plot against each other oblivious to their real feelings. On one side, Ye Qing Ge's childhood friend Xie Qing Yun (Dong Zi Ming) appears and disrupts the already strained relationship between the two.