Isekai Onmyouji to Juuni Tenshou no Shikigami

Once revered as the most formidable onmyoji in history, a peerless master of spiritual arts commanded the Twelve Heavenly Guardians as his loyal shikigami. Yet, despite his unmatched strength, he met a tragic end through betrayal. In his final moments, he seized one last opportunity, transferring his soul across dimensions to be reborn in an entirely different world. He awakens as Wayne, the third son of a prestigious noble family in a realm where magic dictates everything. In this society, social standing is determined solely by one's magical aptitude, and concepts like spiritual energy or shikigami are completely unknown. To make matters worse, Wayne is born with absolutely no mana and zero talent for the local magic system, rendering him seemingly useless in the eyes of his peers. However, beneath this facade of incompetence lies the fully intact knowledge and spiritual prowess of history's greatest onmyoji. Armed with his mastery over ancient techniques and the unwavering loyalty of his twelve heavenly servants, Wayne is prepared to defy the limitations of this new reality. The extraordinary journey of a supreme mystic operating far beyond the understanding of a conventional magical kingdom has only just begun.