The neglected grandson of a wealthy CEO, Sooha has a dark past that has resulted in a split personality. Sooha as himself can be cranky and distrustful, but his alter ego, Ray, is quite violent. This isn’t without good reason: the CEO has been orchestrating attacks on Sooha/Ray in order to find an invaluable jewel Ray has hidden. As part of his plan to find the gem, the CEO hires Soohyun to pretend to be Sooha’s bodyguard. Yet the more Sooha and Soohyun spend time with each other, the more both let down their guard… (Source: Lezhin)