Time-Limited Genius Dark Knight

When Yoo Chan is diagnosed with a terminal illness, he spends his remaining days playing the notoriously difficult fantasy RPG 'Inner Lunatic.' But after starting a new playthrough, he suddenly finds himself transported into the game world as Nox von Reinharber, a terminally ill character he created. Now, armed with his knowledge of the game but trapped in a failing body, Chan must survive in this brutal reality where death is permanent and the clock is ticking.