Its been two years since Miku and Mark had spit, though they are apart and Mark is fufilling out a dream with the guys, Miku still supports in the background. She finds herslf wanting to move to Seoul to support Mark there and she finds herself a new trio to be apart of. Will she find a new love or will she get back with her first love?

A group of friends decided to enter an abandoned factory. What they don't know is one of them is a serial killer. When they enter this factory, which happens to be the killer's playground, all the doors will lock and only the killer can open the doors.  Who is the killer? Why is he/she trying to kill everyone? Could they be doing this because of pure bloodlust? Or for love?