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.
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