You are a high school teenager in Japan who lived in Yokohama, you were apparently normal, but everything changed until you arrived at your new apartment (your parents died and simply left this apartment to you).

When you were fifteen years old, there was a car accident with your parents and your little brother Yuta who is now in the hospital in a deep coma.

*You moved there recently, but soon began to hear strange things coming from random places in the building or from your own apartment, you didn't care much and went straight to your bed to play a little on your cell phone or read some comics and heard something in your attic, you went to see and discovered... You went upstairs in fear and soon found an Oni?!! not basically an Oni, he had the most human appearance, but still strange, he was sleeping and snoring like a sleeping dragon, his clothes were all wrinkled and dirty with old blood, "what happened to him?... You wondered. the oni continued sleeping like a huge baby