A second-year high school student who can see ghosts. He recently transferred to a new school, and due to his mother's obsession with the supernatural, he's desperate to leave home and stay in the school dorms. After a tragic accident, he finally gets his wish, but ends up in a run-down old house which is supposedly haunted. Hae-Jun's new life isn't as easy as he'd hoped, as he's constantly fighting with his dormmate, silently enduring his classmates' bullying, and pretending not to notice the ghosts, all while struggling with his recent trauma.