Sheep-Furry Witch living in a house in the southern map. She's the "Gallery" so to speak: she uses magic to transform herself, and has sex with you while transformed so that she can (ostensibly) get better at concentrating on her spells.
If you use the cheat to unlock all scenes, she's how you view them. If you unlock a scene in the game, it gets unlocked with her too. You can save-scum your way to a complete gallery by spending between 1000-5000 ChocoD for a random scene. The more you spend, the better your odds of seeing a new scene.
Personally, whenever I can't just use cheats I'll use an online save editor to give myself all the weapons and armors, sell enough to max out my ChocoDs, and then go do this until I'm out. Rinse and repeat until I either see the new scenes or unlock everything, and then dedicate a save specifically to staying there with a full gallery whenever I want to fap instead of play.