Nanase runs a pawnshop in the Kabukicho area of Shinjuku, Tokyo, Japan. He is a genius appraiser able to distinguish fakes from originals. He gets pretty much everything at his pawn shop. When clients come to his shop, Nanase appraises their items and also tries to solve their worries.
~Based on the manga series "Shinjuku Seven" by Mizuki Subaru (writer) & Oku Michinori (illustrator).