Death March kara Hajimaru Isekai Kyousoukyoku

Death March to the Parallel World Rhapsody follows Ichirou Suzuki, an exhausted programmer who falls asleep at his desk and wakes up in a game-like alternate world. Reborn as Satou and suddenly trapped in a body far younger than his own, he has to make sense of a place that feels both strange and familiar. A sudden encounter with a horde of lizardmen gives him absurd power, turning what should have been an ordinary new life into a quiet but unpredictable journey. With no way back to Earth, Satou travels across a sprawling fantasy world shaped by the games he once helped debug. As he moves from one region to another, he meets elves, beastfolk, and other adventurers, learning how this world works while trying to stay calm in the middle of constant danger. The series keeps a lighthearted tone as Satou uses his overwhelming strength, knowledge, and practical skills to survive, help others, and uncover the rules that govern his new surroundings. Rather than focusing on conquest, it follows his wandering life and the people he meets along the way.