M/n is a 19 y.o young man that live alone at a apartment, floor 15, M/n work part time as a cashier at a convenience store until midnight, his apartment is small and only had one room, but since he live alone there's no problem.

But those few months strange things happen, he feels like someone is watching him wherever he goes, also he keeps getting gifts and flowers in front of his door everyday, it's start to creep the young man.