Shuraba Marugoto Isekai Shoukan: Danna wa "Yuusha()", Uwaki Aite wa "Seijo"-sama. "Shufu" no Watashi wa Fuyou desu ne?

Nadagi Yu is a 27-year-old office worker and married woman with no children. Upon returning home to retrieve an item she had forgotten, she discovers her husband cheating with a quiet, predatory coworker, despite his supposed absence due to illness. They accuse her and force her out of the apartment she pays for, acting however they please. As she grows increasingly frustrated, she is transported to another world. There, an elderly man informs her that her husband is a "hero," the other woman is a "saint," and she is a "housewife." Dismissive of these labels, she decides to live on her own terms in this new world. Described as a cat-loving, baby-faced woman with a sharp tongue, she makes it clear not to underestimate her.