Frantz is a hybrid human-vampire and one of the playable characters in Rusty Hearts. He holds a strong grudge against Lord Vlad and wields a pair of blades (or a Great Axe depending on his weapon specialization.)
His fiancee, Amelia, was turned into a Vampire by Frantz in the process of trying to save her life after a fatal accident. Soon thereafter, Amelia disappeared and Frantz has made it his mission to find out what happened to his beloved fiance. Teaming up with the Golden Seal Team, he catches a glimpse of a woman who appears to be Amelia, inside Curtis Castle