: The main antagonist of this series. She resides in an old school building and possesses immense spiritual power, which she increases by absorbing other defeated spirits like Kuchisake-onna Kongou Masurao

Toilet no Hanako-san vs Kukkyou Taimashi is an anime that has secured a notable, albeit niche, position for itself in the world of adult animation. It consistently appears in discussions, rankings, and user libraries, indicating a dedicated following. On major anime databases:

As the series progresses, Kongou's actions have unintended consequences. Hanako-san, the first spirit he "purifies," becomes stronger, eventually absorbing the powers of the other spirits Kongou defeats to transform into a more powerful adversary.

The enduring popularity of Hanako-san demonstrates the versatility of Japanese urban legends. By pitting these ancient fears against modern character archetypes like the "strong exorcist," creators continue to find new ways to explore the boundaries of the horror genre and the cultural fascination with the supernatural.