Sidero

A horned mask in pale gold conceals everything above his nose. Underneath sit a squared jaw beneath stubble, a mouth far wider than it has any right to be, and hair in brown and black swept flat to the skull. He clears two metres without effort, and his elbows swell into odd bulbs. Each knuckle except the two thumbs carries a black sphere of iron.

For clothing he takes gray combat gear cut on the same pattern Rogone and Beros wear, altered so that sleeves reach down across his upper arms. Cream boots finish the outfit.

Loyalty to Flect's plan is standard issue throughout Humarise, and he carries it like everyone else in the cult. The conviction looks hollow under any real pressure, though. Owning a Quirk marked him for death by the organization's own logic, so signing on most likely bought him survival rather than belief. That would explain how quickly he offered to trade what he knew once heroes had hold of him.

Thousands died when Humarise set off a Trigger Bomb inside a populated city, and the World Heroes Association answered by organizing simultaneous raids against every branch the anti-Quirk group maintained worldwide. The scientist Alan Kay slipped away carrying a briefcase of critical information, which found its way to Izuku Midoriya and Rody Soul. Flect Turn had both names posted to Otheon's most wanted list, then loaded Beros and Sidero into a helicopter to run the pair down before they could cross into Klayd.

The confrontation came within sight of the border. Longbow arrows opened it, and Izuku evaded every one despite his injuries and the weight of Rody on his back. Sidero proposed different ammunition: his own Iron Balls, loosed from Beros' bow. Each sphere swelled enormously in flight, and even the misses tore open the canyon walls while onlookers at the crossing watched. One blast cost Izuku his footing. Falling, he hooked the helicopter's tail with Blackwhip and landed Delaware Smash Air Force on it, stripping the pilot of control and dropping both boys hard, bruised but otherwise intact.

Sidero jumped down from the aircraft to finish Rody with another expanded sphere. Rody threw the briefcase toward Izuku, whom Beros pinned with arrow fire, and the cliff edge started to give way underneath him. Shoto Todoroki and Katsuki Bakugo had been at the border since the shooting began and reached the fight together. A surge of Shoto's ice locked Sidero in place and scooped Rody clear in one motion. Cornered, Sidero tried to buy his freedom with everything he had on the cult and the briefcase, and Beros repaid the betrayal with explosive arrows before turning back to Katsuki. He rode his Explosions after the chopper, destroyed every shaft she loosed, and demanded surrender once her quiver ran dry. She threw herself into the chasm rather than face interrogation, moments before the aircraft came down. The crossing went to the trainees and Rody. Sidero did not go with them, and left the canyon under arrest.

Iron Ball, his Quirk, grows the spheres on his knuckles, releases them, and swells their size and mass on command, which doubles as an ammunition supply for Beros. Range work is his specialty. Humarise found him guarding a VIP before recruiting him.