Step into the dark, adrenaline-fueled depths of the underworld, where the line between saving a life and taking one is razor-thin. Under Doctor is a high-octane masterpiece that perfectly fuses intense medical drama with heart-pumping, bone-shattering action. At the center of this chaos is Haiji, the legendary Under Doctor. He is whispered about in the shadows as both a savior and a threat: if you want to live, you must find him, but if you want to avoid a grizzly demise, you had better keep your distance. As the underworld's greatest physician and its strongest hero, Haiji navigates a brutal world of syndicate violence, desperate patients, and deadly combat. Whether he is performing miracle surgeries under fire or crushing enemies with overwhelming force, this series delivers non-stop excitement and a deeply compelling protagonist. If you are looking for a gritty, fast-paced action manga that will keep your heart racing with every chapter, Under Doctor is your next obsession.

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