Yui Hatano, a faceless lex who aims only for a married woman's pregnancy danger day

Yui Hatano is a married woman trying to conceive with her husband, but she gets raped by a masked man on her most fertile day. The masked man targets her for his twisted desire to impregnate a married woman, making this a breeding and rape scenario. As the story unfolds, Yui's situation becomes increasingly dire, trapped between her marital obligations and the rapist's threats.