Subaru Sumeragi, the thirteenth leader of the esteemed Sumeragi Clan, possesses formidable mystical abilities as an onmyouji. Hired to cleanse a haunted construction site, Subaru's employer perishes under enigmatic circumstances, implicating a man known for inexplicably cheating death. A chance encounter with a vengeful young woman, convinced of the man's guilt in her brother's demise, thrusts Subaru into a web of intrigue. Determined to unravel the truth behind his employer's death, Subaru, alongside his loyal twin sister Hokuto Sumeragi and enigmatic friend Seishirou Sakurazuka, must navigate malevolent spirits and unearth dark secrets to confront the elusive suspect.