Midori’s mom dreamed about a spacious house and when she finally bought it, she felt something went wrong. She started hearing weird sounds, receiving uncertain messages, having trouble with electrition. The woman guesses a ghost might appeal in her apartment. She is afraid of an “unwanted guest”. When she sees dots of blood in a bath, she immediately applies to the SPR Center. Mai takes the entangled inquest and goes to the house to find out what happens around. Will Mai be able to manage terror and horror? Is a ghost a real culprit? The story looks like the “Evil Spirit Series” but in a distinctive manner.