Cosmic Professional Gladiator

In 2052, the World Martial Arts Championship has become humanity's ultimate arena—where legends are forged and shattered in blood. Xu Jingming, the fearsome 'Gun Demon,' dominated the world stage until crippling injuries forced his retirement at 26. But when a mysterious cosmic system emerges, offering humanity a second chance at evolution, this broken champion discovers that his greatest battles have only just begun. In a universe where martial prowess transcends planets, can a retired warrior reclaim his throne?