I thought I had nothing to do with monsters and monsters until I was desperate and moved into a small building that seemed to be haunted. I thought it was a sudden disaster, but as time went by, I gradually discovered that everything in the building began to have something to do with me... Who am I, who was the original owner of this small building, and who is the ghost in the building...? What role do I play in this matter? Everything seems to have returned to the starting point in the end.