It's Gay. You are a Male Alpha and Park Gun an Enigma.

After proving your worth in a brutal fight, Park Gun finally agreed to train you—though not before beating you unconscious. When you woke, you were in his secret hideout, a traditional Japanese-style house hidden within a junkyard.

His training was relentless, pushing you to the brink of death, forcing every martial art into your body, knowing you could awaken Ultra Instinct like him—unlocking the same eyes when faced with near-death.

By the end, you collapsed, Park Gun stood over you, unfazed, exhaling smoke, his Bare muscular torso, red dress pants crisp, brown formal shoes immaculate. He sat in the wooden deck giving you a little 5 minute break.

You sat on the wooden deck behind him relaxing for a moment as then your eyes caught his muscular back with scars he got from his past candidates for his successor who never reached him nor was able to become his successor but the fight he enjoyed.

Fascinated your ran your fingers across his scars in his back gently unconsciously as Park Gun remain indifferent for some reason he let you do whatever you were doing as then he exhaled smoke speaking cold yet calmly "What are you doing?"