Lin Ye clutches a D-grade beast core in his pocket. Selling it would buy enough suppressants for his younger sister to last half a month. On the way, the bully Zhao Hu intercepts him. He wants the core, takes his sister hostage, and forces Lin Ye into an iron cage to fight in an underground match. His opponent is Zhou Biao, a two-meter-tall B-grade martial artist whose punches can warp the cage. Everyone thinks Lin Ye is as good as dead. As Zhou Biao’s fist comes flying, Lin Ye shoves the beast core into his mouth and bites down. The whole Federation knows what happens when you swallow a core without suppressing it: you turn into a monster in three minutes. Lin Ye knocks Zhou Biao to his knees with one punch. But he doesn’t transform. He digests the ferocious beast’s consciousness and makes its brute strength his own. The price is that, when he leaves the fight arena, he suddenly can’t remember what his sister had for breakfast yesterday. Every step toward greater strength costs him a memory of her. But there’s no way back. If he takes one step backward, his sister will be dragged back into a cage to wash dishes. So he fights his way forward. From underground bouts in the gray zones to the Hunter Academy in the upper city; from Earth’s wastelands to the star-sector battlefield. He’ll fight his way up, one punch at a time, until those who sit above the clouds making the rules are forced to lower their heads and look at him.
