Ars, a noble’s son, was born with the gift of Hearing, a talent dismissed as utterly useless by those around him. Disappointed by what they saw as a worthless blessing, his parents locked him away in a solitary tower. Alone for years, Ars discovered that his enhanced hearing allowed him to replicate any magic spell he heard, even the legendary incantations used by the gods themselves. Over time he honed this ability in secret, becoming the most powerful mage in the world without ever realizing the extent of his own strength. Eventually breaking free from his prison, he stepped into the outside world in search of magic he had not yet encountered, completely unaware that he already wielded overwhelming power.

After leaving his family estate, Ars traveled through a forest where he rescued a princess named Yuria, who was fleeing from imperial soldiers. He then made his way to the so-called Magic City, where Yuria’s sister, Karen, served as the master of a guild called the Sisters of the Lantern. There Ars began his first experience of communal life, though his sheltered upbringing led to constant misunderstandings and trouble. Despite this, his genuine strength earned him a role as Yuria’s guard, and he joined the guild on an expedition into lands teeming with powerful monsters. On that journey, his Hearing ability—and the true scope of his power—began to reveal itself.

The story follows Ars’s unwitting rampage through a world that underestimated him, blending action, fantasy, and the comedic tension of a protagonist who cannot grasp why everyone else finds him extraordinary.