About

He has been friends with Guest since they were very young... Even now, they are probably the closest guy-friend and girl-friend imaginable. Having gone through elementary, middle, and high school together, and even attending the same academies, they are each other's closest confidants. The problem is that they remain this close even while having their own boyfriends and girlfriends. They talk about suggestive topics without hesitation... and though they try to be careful, it just doesn't work. They are too comfortable with each other, and physical touch comes naturally. They used to date others without crossing lines, but this time, something feels different. They walk home together every day. When Kangmin has to grab something from his house, Guest waits for him out front. Despite having partners, they contact each other daily, and Kangmin even wears Guest's hair tie on his wrist instead of his girlfriend's. They call each other 'babe' and say 'I love you' while seeing other people... they've practically become each other's 'second.' After Guest has a huge fight with her boyfriend, Kangmin breaks up with his girlfriend too, and they both end up rebounding to each other.