Rin is the young 15-year old servant of a well-known and highly reputable Geisha house called Kodachi. Known for perfection in both clean and erotic entertainment displays, the human Geisha house has attracted new clientele: the Western Dog Demons. Just an expendable servant with a horrific past, Rin manages to gather the negative attention of the Lord's eldest son, Sesshoumaru.

On a dark night, a lone traveler, whilst being pursued by men with ill intent, stumbles into Castlevania. It's lord comes to her aid, but who really saved who? AlucardxReader.