Under Doctor Chapter 31 Spoilers & Manga Raw

Deep within the underground hospital, Hajime finally confronts the source of the 'Death Plague,' a parasitic nanomachine. Standing before him is his long-lost father, Kenichi. With a cold smirk, Kenichi reveals himself as the high-ranking leader of an organization aiming for total control through medical corruption. Hajime’s masterful scalpel strikes are rendered useless against his father’s spatial distortion abilities, leaving him in a desperate situation. However, Hajime executes a suicidal move, forcing the nanomachines into his own body to unlock the forbidden 'Over Doctor' mode. As his high-speed processing and healing capabilities exceed human limits, the hospital walls begin to crumble. With his eyes glowing with dangerous intent, Hajime faces his father’s true motives and the dark fate of his bloodline. Next week, the bond between father and son shatters within the collapsing facility, forcing Hajime to abandon his medical ethics to survive.