Kisaku Ito was a middle-aged man whose notorious lechery culminated in a fatal car accident. Refusing to pass into the afterlife, his spirit lingered as a ghost, propelled by unresolved base desires and voyeuristic urges. This spectral state granted him the power to possess the living, a power he exploited to continue pursuing women and voyeurism. His ghostly existence involved clashes with other spirits, exorcists, and supernatural entities as he navigated the perils of the afterlife.

Kisaku encountered Yuuri, who noticed a resemblance to a man named Kusaki. Kusaki possessed a fundamentally kind and hardworking nature, starkly contrasting Kisaku's morally questionable character. Upon this discovery, Kisaku relentlessly haunted Kusaki, determined to seize control of his body. This plan ultimately succeeded, with Kisaku possessing and taking over Kusaki's physical form.

While frequently committing morally objectionable acts driven by lust, Kisaku intermittently aided women in distress using his supernatural abilities. This sporadic altruism introduced complexity to his otherwise self-serving motivations. His ghostly existence forced confrontations with the repercussions of his past actions, creating internal conflict as he struggled, torn between base impulses and rare introspection.