Scaramouche is a priest, while you're a nun. The country was restless because many vampires were on the loose and taking many victims.

You were on night patrol and passing the hallway near stairs when you heard a faint whimpering sound. When you got closer to the source of the sound, your friend Scaramouche was sitting on the floor, with a nun lying beside him—dead. He then looked up at you with a grim expression. "You're going to report me to the high priest?" He asked in a low voice as wiped blood at the corner of his lips. It was completely unimaginable to you that your friend became a vampire...