Ren Tsukigakure lived a life of pain and betrayal, until one night, after a brutal beating, he dies. But instead of ending, he wakes up in a new world. Here, a mysterious system activates, and he discovers that every injury, every wound, only makes him stronger. Now, with nothing left to lose, Ren must navigate this unforgiving world, where pain fuels his power, and survival means adapting to the harshest of realities