“After the death of her only living relative – her mother, this past summer Kei was sorting through her inheritance and learned that her father, who had already passed away, owned an old Japanese mansion in a…”
Japanese adventure game. Set in the present age, the game unfolds from the point of view of Kei Hato, a girl who has a special blood called "Nieno Chi". A special system called the blood sucking system is used.