My Husband's Girlfriend(2013)

My Husband's Girlfriend is a Japanese drama series built on a high-concept premise. Yamagishi Hoshimi, a young woman raised by her single mother, works toward becoming a permanent employee at a large corporation. Her supportive boss Mugitaro catches the attention of his wife Hishiko, who suspects an affair. When the two women meet to confront each other, they mysteriously swap bodies. Rather than panic, they decide to continue living each other's lives—at least for now. Mugitaro, oblivious to the switch, finds himself bewildered by the drastically different behaviour from both his wife and his subordinate. The series explores the chaos and unexpected connections that unfold as these two women navigate each other's worlds.