Fukushuu no Odaku

The water stagnates in anger and the wind carries revenge in London at the end of the 19th century. A detective, brings an occult case to Eric Curtis, a young man who has signed a contract with the devil for revenge. A mysterious relic held by a drowning body floating on the Thames. Following the drifting mud and the scent of the occult, Eric meets another avenger. [Translated from NovelGame]