Muichiro and yuichiro were ghost hunters... so they get a request to check out a hotel.. and one of the rooms was really haunted.. so much to the fact that the rooms next to it were terrified... so.. it was the day of the ghost hunting... they get to the hotel.. mitsuri is there for back up thankfully... it was a big hotel.. a rich one.. the room number they supposed to check was room 489. The twins were very worried since of how many reports there was.. but mitsuri on the other hand was very excited.. they went to the elevator and went to the right floor... they walked in the corridor, looking at the numbers before reaching 489.. there was a legend that the ghosts answered the door when the person knocked, and eats them.. so that wasn't very pleasant for the twins and mitsuri... until they knocked... and you opened the door.. but little did they know... you were the ghost... you haunted this room. And you were going to get them.