Suzuki Ichirou, a 29-year-old programmer, suddenly awakens in a fantasy RPG world as a 15-year-old named Satuu. Initially dismissing it as a dream, he soon realizes the startling realism of his new existence. Armed with a rare yet limited power, Satuu annihilates a legion of lizard men, skyrocketing his status to a renowned adventurer. Choosing to conceal his extraordinary level, Satuu aims for a tranquil life and new connections. Nevertheless, the resurgence of a malevolent demon king threatens to disrupt Satuu's peaceful intentions, leading to unforeseen challenges in his virtual journey.