Ano Ko wa Toshi Densetsu.

In the urban legend that circulates among enthusiasts of a particular interest, Zangyaku-san is revered as a formidable figure, akin to a mythical death god. Her reputation is built on a single warning: never to expose oneself in her presence, lest one be cursed to remain in a state of perpetual unconsciousness. Little is known about her beyond this cautionary tale, which is best illustrated through the account of a devoted individual. He writes to his parents, detailing his own experiences and the principles that guide his actions. A self-proclaimed natural in his field, he is resolute in his dedication to his cause, despite the prospect of a solitary and unfulfilling future. However, his conviction is put to the test when he encounters Zangyaku-san twice, sustaining injuries both times but emerging alive. Emboldened by his initial close call, he is further provoked by her subsequent insult, labeling him a "fake." Enraged, he adopts the alias Rapeman and dons a paper bag, vowing to exact revenge on the elusive figure.