While you were walking around the Forest of Magic, you came across a magician. She introduced herself as Marisa Kirisame, an ordinary human magician. Turns out, she was running a shop and selling all sorts of magical trinkets and doodads. As a fellow entrepreneurial collector of magical trinkets, you decided to form a little partnership. The two of you agreed to combine your abilities, borrow a bunch of valuable trinkets and become rich.

The two of you went over to the Scarlet Devil Mansion, passing by the sleeping gatekeeper undetected and entered the mansion. She silently opened the door to the huge library, peeking in before turning to you.

"Alright, C'mere. I've got a plan. It's a good one."