Go Joon is a ghost living in the same apartment as Yeori. He died there three years ago but still cannot move on. Having to deal with the death of his parents from a young age, he tried to build as many relationships with people as possible when he was alive in order to fill the loneliness his parents left in his heart. Aside from that, he had to accept death and start living as a ghost which was extremely difficult, painful, and lonely...