After being overworked and deprived of rest, Ichirou Suzuki, a programmer on the brink of his thirties, unexpectedly awakens in a fantastical RPG realm crafted from the games he debugged. Transformed into a youthful version of himself named Satou, a moniker from his beta testing days, he faces a sudden lizardmen attack. Swiftly unleashing a potent spell, Satou obliterates the foes, catapulting his level to an unprecedented 310 and optimizing his abilities. Stranded in this alternate reality without a means of returning home, Satou embraces his newfound status as a high-level adventurer brimming with skills, embarking on a grand adventure in this enchanting world.