Blood+

The game takes place in a dark world, similar to the U.S. in the early XX century. The main character named Kaleb falls in love with girls named Ofelia. From her he learns about a religious cult Cabal gaining in strength, which they join it later. Kaleb, Ofelia and also two other cult adepts Gabriela and Ismail become the cult chosen. But in some time the dark god Chernobog, who is worshiped by the cult accuses the chosen ones in treason and orders his henchmen to kill them