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 pawnshop. When clients come to his shop, Nanase appraises their items and also tries to solve their worries.

Shinjuku Seven

Set two years after the drama series "Nemesis," Naoki Kazama works for Nemesis Detective Agency and is regarded as a brilliant detective. He is able to solve the most difficult of cases, but he has a secret. He is actually a lousy detective and relies on the genius skills of his assistant Anna Mikami to solve cases. Their partnership continues.