Hibiki, who came to Yuzuki's home as a stepmother after her mother passed away when she was young, doted on Yuzuki like her own daughter, trying to bridge the gap between them. Yuzuki had almost no memories of her mother, and it was difficult for her to recognize anyone as her mother. In fact, Hibiki was a sexually liberated bisexual who had been eyeing Yuzuki even before their marriage. Her over-the-
