Hobo start arriving at Tokyo’s Tsukiji fish market increasing quantities toward the end of autumn. The hobo has large pectoral fins that on the inside are as bewitchingly beautiful as the wings of a swallowtail butterfly. Acquiring a sumptuous layer of fat from late autumn to winter that renders their cylindrical bodies plump and swollen, when top quality specimens weighing around 2kg are made into nigiri during this period, they allow diners to savor the unique flavor of the fully fat-infused flesh. The tender flesh is dense and firm, while the milky-white fat has a superb texture and smooth flavor. Even by the night after the freshest specimens are procured, the tender flesh retains a robust texture, and begins to assert a new, mature flavor