Gaining a Pound of Strength Every Minute, One Punch Shatters the Apocalypse

[Sea Beast Apocalypse + Decisive Killing + Violent Aesthetics + System + Muscular Tyrant + Ultimate Personal Combat Power + Pure Thrilling Novel] Nuclear wastewater overflows, sea beasts mutate, and the apocalypse arrives. Struggling to survive amidst mountains of corpses and seas of blood, Jiang Xuan, at his wit's end, is reborn fifteen years in the past, activating a combat-type physical enhancement system. His ability allows him to gain one pound of strength per minute and to absorb energy from everything to level up! Knowing that only half a month remains until the apocalypse, he begins a daily cycle of insane eating and training, leading all his relatives and friends to believe he's lost his mind. A week later, Jiang Xuan announces online that he has broken the 8-second barrier for the 100-meter dash, and everyone thinks he's just showing off. Two weeks later, Jiang Xuan posts a video of himself deadlifting 1000 kilograms with one hand, and everyone thinks he's crazy and deliberately faking it. ... Half a month later. The apocalypse arrives. When the internet exploded upon seeing this shirtless young man, his back muscles bulging like a demon's face, punch the three-meter-tall, bulletproof lobster monster to pieces! Mutant seafood from all the oceans faced their most desperate moment. The Iron-Shelled Crab exclaimed, "How can this guy's defense be higher than mine, and his strength greater than mine!" The Two-Headed Octopus wailed, "I, the overlord of the ocean, was punched to pieces by him? Can you believe it?" The Hexafin Tuna pleaded, "Oh God! Big brother, don't come near me! I'm willing to be your food, just spare my life, please withdraw your iron fist!" On that day, countless sea creatures in the deep sea experienced the terror of being dominated by a muscular tyrant!