Fukai ni Nemuru Oujo no Abaddon

Yamanobe has been interested in his friend Ayanokouji’s family mansion for a long time. The place has been abandoned for a long time, however… so with his friend’s permission, he sets out to explore the crumbling manor.

But strange and frightening things are happening in the old house, and Yamanobe’s son and his friends are unwittingly pulled into a tragedy…