I'm A Grinder! I'm A Fighter!

Under the guise of an ordinary and unique civilization, there's an uncharted territory where the best fighters seek out to fulfill their ultimate goal of becoming the world's strongest man. A young foreigner, who's also an aspiring fighter, decides to dive into the underground scene in order to test and surpass his own limits. But as his journey takes him to meet formidable opponents, potential allies, and lovers, he would soon get dragged into a massive conflict between powerful socialites and criminal syndicates. Would his strength and skill be enough to swim in a tank full of sharks?