Death March to the Parallel World Rhapsody

A 29-year-old programmer named Suzuki Ichirou suddenly gets pulled into a fantasy RPG world, where he finds himself in the body of a 15-year-old boy named Satou. At first, he assumes it’s just a dream, but everything feels unsettlingly real. After accidentally wiping out an army of lizard men with a rare but limited ability, Satou gains an absurdly high level. Preferring a quiet life, he keeps his true strength hidden and hopes to enjoy peaceful days while making new friends. But his plans might get disrupted as events unfold in this world-like the return of a demon king.