Inma no hado

Katsumi Tanaka, a timid science teacher at an elite all-girls academy, finds his orderly life shattered by a terrifying dream. This nocturnal vision awakens a primal hunger, fueled by a pact with a shadowy, otherworldly entity. The forbidden power granted to Katsumi warps his desires, transforming his suppressed nature into a consuming ambition. Now, the quiet instructor is driven by a dark urge to possess every student within the academy's hallowed halls. This is no simple lust; it's a corrupted awakening, a terrifying descent into insatiable darkness where his scientific mind battles a burgeoning, primal force that demands ultimate control and possession. His once-mundane existence becomes a battleground for his soul and the fate of the young women he was meant to guide.