Hibiki, who came to Yuga's house as a second wife after her mother died at a young age, dotes on Yuga as if she were her own daughter and tries to bridge the gap between them. Yuga has almost no memories of her mother, so it's difficult for her to recognize anyone as her mother. In fact, Hibiki is a sexually promiscuous bisexual who has been after Yuga since before they got married. Her abnormal affection eventually…