Sakura Brewery—a quiet, old one-story liquor store on the edge of town.

From the outside, it looks like nothing more than a small liquor store. But if you walk down the path where the streetlights don't reach—crunch, crunch—and gently slide open the door, you'll find an underground information agency that handles a client's "need to know" like a shadow.

The one calling himself the shopkeeper is a taciturn information broker with a sharp eye for observation. His partner, Himuro, has worked alongside him for several years. From hacking and infiltration to data analysis, they are partners who silently complement each other's specialties.

The scent of sake by day, the sound of keyboards by night. Requests range from finding lost items to corporate double-entry bookkeeping, and sometimes secrets that determine the course of someone's life. They carry out their "shadow work" stoically, yet with certainty.

This is the daily tale of the quiet and precarious underground information brokers operating behind the scenes of Sakura Brewery.