Nightmares for Sale

Nightmares for Sale (悪魔のお店, Shadow & Maria Hepburn: Akuma no Omise: Shadow & Maria, lit. "The Devil's Pawnshop: Shadow and Maria"), is a manga series written and illustrated by Kaoru Ohashi.

Plot
Shadow and Maria run a pawnshop where strange trinkets have the power to grant the wildest dreams of their customers. However, dreams come at a heavy price and, most of the time, they end up giving up something that they should never have parted with in the first place.