Munou to Iware Tsuzuketa Madoushi, Jitsu wa Sekai Saikyou Nanoni Yuuhei Sareteita node Jikaku Nashi

Born with a rare magical aptitude known as Hearing, Ars was immediately branded a failure by those around him. Deemed entirely useless by his own family, his disappointed parents locked him away in an isolated tower, severing him from the outside world. For years, he remained confined to this solitary existence, dismissed as a mage devoid of any real potential or value. Yet within the quiet walls of his prison, Ars makes a startling discovery about his supposedly worthless gift. His heightened sense of hearing grants him the extraordinary ability to perfectly replicate any spell he listens to, no matter how complex or ancient. This includes legendary incantations once wielded by the gods themselves. Through relentless practice and observation, the boy who was discarded quietly ascends to become the most powerful mage in existence. When Ars finally steps beyond the confines of his tower and ventures into the wider world, he begins a new chapter of his life. However, his prolonged isolation has left him with a peculiar blind spot. Despite possessing overwhelming magical strength capable of reshaping reality, he embarks on his journey completely oblivious to the sheer magnitude of the power he wields.