At the end of the 19th century, America, the wild west.
Her name is Serra, searching for her missing father. But the wild west she travels is filled with undead that bullets cannot kill.
One day, a man knelt before her, and asked her to abuse him with her beautiful voice.
His name is Klaus (protagonist). While being trained as priest with psychic powers he suffered a great shock surviving the slaughter of everyone in the church he belonged to, since then he can't use any of his powers unless he has an erection. But somehow his powers surface and save him when his life is in danger.
Thus they join together in this journey to the west. Serra searching for her father, Klaus lost without a cause... In their journey they face against vampires, werewolves, Billy the Kid and Jesse James who were supposed to be long dead. As they go further, things get even stranger and dangerous...
[Translated from Getchu]