Diabolus: Kikoku

In a modern world where the lines between the mundane and the demonic blur, a seemingly ordinary school becomes the unlikely battleground for a conflict as ancient as time itself. When dark forces begin to stir, threatening to unleash chaos upon the unsuspecting, it falls to a woman of remarkable fortitude and an unyielding spirit to stand against the encroaching shadows. This mature-themed OVA plunges viewers into a seductive and dangerous narrative, exploring themes of power, desire, and the fight for control. As our heroine navigates a treacherous landscape of supernatural encounters and carnal temptations, she must harness her inner strength to protect her world from a sinister entity known only as Diabolus.

✦ AI-drafted summary