Donghae gets text messages from an anonymous person who calls himself his stalker and this stalker knows everything about Donghae. Donghae knows he should get spooked, instead of wanting to know more about this stalker. However, there's this inexplicable familiarity about his stalker

They were once the perfect couple, but Donghae took Hyukjae's love for granted. Now that Hyukjae has left, Donghae realizes his true feelings, is it too late? 

Right. They were classmates, bandmates and roommates. But just because everyone expects them to be bestfriends, doesn't mean they really have to be bestfriends. Both of them hated each other's guts. Donghae thinks that Eunhyuk is a worthless flirt, because all the redhead ever does is bring different girls to bed everyday. Amanda today, Ashley tomorrow, Agnes the next, and Alice the following day. Donghae suspects that Eunhyuk might have a compulsive disor