Summary
At nineteen years old, standing 179 cm tall and weighing 66 kg, River is a sweeper dedicated to capturing Creed. He wields the Gerbell Command style, a martial art forged in Talica during a thirty-year war that prioritizes immense power and speed in the fists. This technique is potent enough to deflect bullets and generate shockwaves for long-range attacks. His most notable abilities include Sonic Fist and Tornado Grenade. Sonic Fist enables River to propel his fists forward, allowing him to deflect projectiles like bullets for defense or launch high-speed strikes that create air shockwaves, as demonstrated in his fight against Preta Ghoul. Meanwhile, Tornado Grenade involves gathering a spiral mass of wind around his arm to form a miniature tornado, which he uses to piledrive massive rocks. River’s first appearance occurs at a local Sweeper Bar visited by Train and Eve, while Sven is absent training his Vision Eye. Upon learning Train’s identity, River challenges him to a fistfight to test his strength. He concedes defeat after being grazed by a bullet and witnessing Train’s Rail Gun, admitting that even he could not deflect such a shot. Following a boat incident on Kraken Island that separates the sweepers, River reunites with Train in the same area. They subsequently team up to fight Preta Ghoul and Maro. River also supports Train during the battle against Shiki, distracting the giant insect summoned by their opponent while Train engages Shiki directly. Train nicknames him "Thunder head" due to his shock yellow hair. Later, River assists Train in battling berserkers, likely members of the Sweeper Alliance, specifically Touma and Mundock. After this conflict, he urges Train to take on Creed.
