Suiryu, heir to the prestigious Void Fist martial arts lineage, trained rigorously under his grandfather Suicho alongside his sister Suiko. Renowned for his prodigious talent, he claimed four consecutive Super Fight tournament victories and a fifth championship title, cementing his status as a legendary fighter. His early dominance bred complacency, driving him to chase excitement through combat while indulging in a carefree, hedonistic lifestyle. Initially dismissive of heroes as shallow glory-seekers, Suiryu prioritized leisure over heroics until his encounter with Saitama—disguised as Charanko—during the 22nd Super Fight tournament. Effortlessly overpowering A-Class heroes Max and Sneck, his arrogance crumbled when Saitama’s casual strength dismantled his techniques, exposing his limitations. The humbling defeat left him awestruck by Saitama’s indifference to recognition, sparking reluctant admiration amid shattered confidence. The Monster Association’s assault on the tournament further tested Suiryu. After defeating monstrously transformed fighters like Choze, he defiantly rejected Gouketsu’s offer to join the monsters, enduring brutal torture rather than forsake his humanity. Near death under Gouketsu and Bakuzan’s onslaught, his desperate cry for a hero’s aid marked a pivotal shift. Rescued by Sneck and Max, he emerged with newfound respect for heroism, later joining the Neo Heroes as a Neo Leader equipped with advanced battle suits featuring mobility analytics and life-support systems. A Void Fist virtuoso, Suiryu wields techniques like the Void Sky Dragon Fist and Void Shaking Tiger Fist, blending acrobatic precision with devastating strikes capable of fracturing arena floors and deflecting energy attacks. His enhanced senses detect bloodlust and gauge opponents’ strength, yet overconfidence often blinds him to threats. Despite enduring catastrophic injuries from Dragon-level foes, his resilience underscores his physical mastery. Beyond the core narrative, Suiryu appears in spin-offs: the OVA "Games and Rivals" pits him against Garou in a virtual tournament cut short by technical constraints, while *One Punch Man: A Hero Nobody Knows* features him as a playable character showcasing Void Fist moves. An omake chapter chronicles his grueling recovery post-Monster Association, emphasizing his resolve to grow stronger despite crippling wounds. Suiryu’s arc traces a path from self-indulgent thrill-seeking to purposeful heroism, balancing his relaxed charm with a commitment to protecting others. His Neo Heroes affiliation bridges martial arts tradition and modern vigilantism, framing him as a evolving figure navigating legacy and duty.