Blue Fire

A young fighter with cropped black hair and dark eyes, Blue Fire favors a deep blue kung fu outfit trimmed in white. His right arm no longer matches the rest of him, having been torn away during his violent encounter with Garou.

Grim and uncompromising, Blue Fire is hardest on criminals; if he judges someone dangerous enough, he will burn them to ash without a second thought. That harsh edge sits alongside genuine honor, and his hero name is said to mirror the nobility of his character.

Blue Fire keeps a portable flamethrower tucked inside his sleeves, feeding a long, steerable stream of fire that he can focus into a concentrated blue blast he calls Cremation. Sitch rates his fighting close to the S-Class level. He first surfaces during the hunt for a rumored monster, announcing that he will investigate the ghost town himself, only to reach Z-City and find that Saitama has already dealt with Kombu Infinity.

Later, assigned with Magic Trick Man and Heavy Tank Loincloth to watch over the criminals Sitch had gathered, he clashes with the group when Garou attacks; his attempt to incinerate the Hero Hunter misses and scorches the criminals behind him instead, and Garou rips off his forearm and knocks him unconscious. He afterward receives a metal prosthesis in place of the lost limb. He turns up again among the heroes responding to Tatsumaki's underground battle with Apollo, and still later arrives to help against Pesky Clown, piecing together that the monster terrorizing the area is in fact Sweet Mask before Saitama leads the transformed hero away.