Joshua Hong Jisoo is just a normal university student. He does his work, gets 100's, studies for his tests, passes, then does it all over again, all while maintaining an loving relationship with his adorable dongsaengs that care for him dearly and vice versa. But, when Jisoo starts to notice strange things happening in his apartment like taps turning on and his phone suddenly falling off the bedside table, he begins to wonder if his life is really as normal as he thinks. Jisoo says that he doesn't believe in ghosts, but a certain someone is making him skeptical of his own logical reasoning...