The freight carrier built by cats. Humans welcome.

Every can begins at a gate like this one. The trawler ties up, the forklifts wake, and somewhere above the door a sign promises the one thing United Cat Foods has never renegotiated: the finest tuna, at the finest quality, moving. What started as a dockside auction shed is now the reference market for protein in this arm, and the poster on the fence has not needed updating, because the promise has not changed.

The pictures below were cut from the facility's own orientation board. Each panel is a department, and each department is a story that begins the moment the fish crosses the threshold.

In the auction hall, lot number 105B, a hon-maguro of 305 kilograms, went to the floor at twenty-five million, six hundred eighty thousand. The bidding cats wore hard hats. Nobody remembers why that became the rule; everybody remembers the day it became necessary.

Inspection follows the hammer. Four inspectors, four checkmarks: freshness, quality, weight, safety. The magnifying glass is ceremonial. The standards are not.

When the market went to orbit, the facility went with it. Tuna Prime 01 keeps the old departments and adds three hundred kilometers of altitude: trading dock, quality lab, cold storage, processing plant, control center, shipping hub, stacked into one structure that catches Jupiter's light on the morning side.

The vaults run at −60°C and 95 percent humidity, and a lot keeps its grade for one hundred twenty days, which is longer than most arguments about it. Trade routes run to Neko Station, Luna Depot, Titan Relay, the Jupiter Hub, and the outer rim markets, and every route is drawn on the wall so nobody has to ask twice.