My Husband: That Girl's Lover (2023)
Original title: わたしの夫は―あの娘の恋人―
My Husband: That Girl's Lover is a 2023 Japanese-language drama series. It stars Rio Yamashita, Yuki Izumisawa and Daichi Saeki.
A devoted wife suspects her husband of having an affair and teams up with the lover’s spouse to break them apart, but their scheme takes an unexpected turn when she begins a secret affair of her own and falls for the very man who was supposed to be her ally.