Saishuu Heiki, 1 Okunengo ni Musou suru

100 Million Years Later: The Ultimate Weapon's Return / The Ultimate Weapon Returns After 100 Million Years / The Ultimate Weapon, Overpowered 100 Million Years Later / 1 The "Corruptors" are monsters born from the waste humanity spewed into the world, and their existence slowly eats away at the planet, driving mankind to the brink of annihilation. Humanity's strongest agent, Jin Shid, gains the power to save the world after enduring brutal human experimentationbut it comes too late; 99% of humanity has already perished. Pinning his hopes on the future, Jin chooses to enter a long sleep. One hundred million years later, on a newly reborn Earth, Jin awakens and smiles. "Looks like I was right to believe in itthe possibilities of the future."Original Webtoon