Reborn as a No-Class: My Past Life Memories Are My Cheat

Lee Sung-min died an insignificant death, a C-class mercenary in a brutal world, having started with nothing as a 'No-Class' summon. But then, he woke up. Not in the afterlife, but 13 years in the past, a fresh-faced 14-year-old just summoned to the treacherous city of Jenavis, still a 'No-Class'. The world hasn't changed, but he has. He remembers everything: the monsters' weaknesses, the hidden dungeons, the future's powerful players, and the venom in a stranger's \"kind\" offer. He won't make the same mistakes. With a child's body and a veteran's ruthlessness, Lee Sung-min will claw his way up. His first step? Killing the very first 'benefactor' who dared offer him poisoned water. This time, he'll seize every opportunity, claim every hidden treasure, and ensure his second life is anything but insignificant.