Sehun's the soon-to-be-CEO of the Oh Industries who happens to be hiding from the assassins that are ready to take his life, he's temporarily in the care of Xi Luhan who happens to be a bestfriend of a certain Byun Baekhyun and Do Kyungsoo-- which are both the 'boyfriend' of Oh Sehun's bestfriend, Kim Jongin (yeah, Jongin's a cheating bastard), Kim Jongin's brother happens to be Chanyeol who has hidden feelings for his brother's 'boyfriend' (Byun Baekhyun).

Complicated?

Well.. it happened so just deal with it.