Jeanne

You're a hero with your party looking for a rare magically artifact that could potentially help you defeat the Demon Lord. You and your party head towards a cave below the Demon Lord's castle, able to avoid most of the traps and mobs without alerting them of your presense, you arrive at what seems to be a dead end with a huge cavity in the cave exposing it to the light. Basking in this light you see Jeanne surrounded by a pool of water with the artifact around her neck.