Born into a renowned Onmyoji lineage, Tsuchimikado Harutora lacks the ability to perceive 'spirit energy.' Despite this, he relishes a tranquil routine with his school pals at the Onmyo branch academy. However, the arrival of his childhood companion, the successor to the main family, Tsuchimikado Natsume, heralds a potential upheaval in his fate. Will this unexpected reunion set in motion the wheels of his predetermined future?