Jet Nice Guy

A cyborg by design, Jet Nice Guy wears sunglasses and a set of ear coverings, along with rounded shoulder and knee pads and boxing gloves, with the letter J stamped on the right side of his chest. A later overhaul lengthens his hair and reworks his frame, giving him sharper shoulders, a trimmer waist, slightly bigger sunglasses, a chin guard, and a fin-shaped wing rising from his upper back.

When the Seafolk stormed J-City, Jet Nice Guy first took cover in the evacuation shelter, yet once the Deep Sea King broke in he was among the earliest to stand between the monster and the civilians. The move shows a man who, though clearly afraid, will still gamble his life to shield others. He also holds respect for those above him, glad to have an A-Class hero at his side against the Sea King.

Jet Nice Guy came into his cybernetic body after a lottery win, spending the prize to have himself converted before joining the Hero Association. During the Sea Monster Arc he hides in the J-City shelter until the Deep Sea King attacks, at which point he joins All Back-Man, Bunbun Man, and Sneck in a defense that ends in easy defeat. For the Monster Association raid he returns rebuilt and upgraded, cutting down several monsters in the opening assault before failing to bring down Rhino Wrestler. Later, as monsters pour up from the ground, the executive Nyan slices through him and much of the surface support team with speed no one can follow; Sekingar carries the wounded to safety, and Jet Nice Guy is still breathing as Drive Knight finishes Nyan. He also appears at the Hero Association headquarters during the Psychic Sisters Arc when Tatsumaki fights Apollo below the building. As a mid-tier B-Class hero he is a fair fighter but no match for Demon-level threats, and his cybernetics are reckoned well behind those of Genos. His enhanced strength lets him kill weaker monsters with plain punches, and his signature Ultimate Jet Straight fires him at a target on a burst of energy for a straight blow. He also features as a playable character across several One-Punch Man video games.