Iron Fist

Iron Fist reigns as the biggest gang in N-City, a sizable crew of criminals holed up in the port hangars along the coast. Its members favor leather vests and jeans, and each fights with iron gauntlets strapped to their hands. The gang's strength and sheer numbers let it overpower a solitary A-Class hero.

In the Psychic Sisters Arc, Iron Fist took Erika captive to draw the hero Feather into a fight. He downed a fair share of the gang before they wore him out, then mocked him for falling for the ruse and taking on N-City's top gang alone. Erika revealed she had played him the whole time, admitting she was Big Iron's girlfriend, planted to spy on Feather while posing as a frightened victim. Feather only laughed at how poor her acting had been, reading the tear she shed as proof their bond had been real.

Frustrated that his crew still had not finished Feather, Big Iron swore to handle it himself. Before he could, Tatsumaki hurled Saitama clean through the wall, knocking Feather out in the process. As Saitama apologized and bickered with Tatsumaki over the wreckage, the gangsters recognized her and panicked, assuming Feather had summoned reinforcements. Big Iron urged his men to stand firm against a single S-Class hero, then struck Saitama, mistaking him for a harmless bystander. Saitama shrugged it off and launched him through the ceiling, and when the enraged gang charged, Tatsumaki flattened their hideout and knocked out the rest.

Big Iron leads the gang and remains active. His girlfriend Erika served as the bait that lured Feather into the trap, while the gang's rank and file are otherwise left unnamed.