Kim Jongin has just started his second year of college. He isn't a perfect model student, but he manages. Half way through the first semester, boys around his age go missing from campus. He notices that they bare an uncanny resemblance to him. He doesn't think too much of it until the first to go missing turns up dead. He takes all the necessary precautions to stay safe; he makes sure to never be out alone after dark; he always walks home with a roommate; he keeps his doors locked.
Oh Sehun is a freshman in college. He was never an amazing student, but when his high school crush gets accepted into one of the better schools in the area, his grades take a turn for the better. And finally, he gets accepted into the same school. But when the one person he worked so hard to be near, brushes him off, he can't contain his rage.
Kyungsoo is struggling with his mental health which got worse after graduation. In a phase where he isn't sure what he is actually doing and his life being just burdensome he is forced to go out with his friends and meets happy virus Park Chanyeol.