Death March to the Parallel World Rhapsody (2018)

Twenty-nine-year-old programmer Suzuki Ichirou is suddenly pulled into a fantasy role-playing game, where he becomes a fifteen-year-old boy named Satou. He initially assumes he's dreaming, yet everything around him feels undeniably real. Using a potent ability he can only deploy a limited number of times, he annihilates an entire army of lizard men and rises to become a high-level adventurer. Satou chooses to keep his level secret, hoping to live quietly and make new friends. But as the game's story unfolds—including the resurgence of a demon king—his peaceful plans may be disrupted.