I'm not entirely sure as it could be a relatively unknown or niche visual novel. It might be about unique relationships or a specific fictional world. Without more information, it's hard to say exactly.
Liu Yuru was not the Empress. Liu Yuru was a character in the TV series " The Long Wind Crossing." She was the daughter of a Yangzhou cloth merchant. There was no mention of her becoming the empress. Therefore, Liu Yuru was not the Empress.
Liu Yuru got pregnant in the tenth episode of the TV series " The Long Wind Crossing." She was pregnant with Gu Jiusi's child, a boy and a girl. The news quickly spread and the entire Gu residence knew about it.
Liu Yuru was the illegitimate daughter of the current king. Her mother had a relationship with His Highness, but she was forced to marry Father Liu. Therefore, Liu Yuru was not Father Liu's biological daughter.
Liu Yuru's ending in the TV series " The Long Wind Crossing " was a happy ending. She experienced family difficulties and marriage twists and turns in the play, but she showed strength and wisdom in adversity. In the end, with Gu Jiusi's help, Liu Yuru successfully ran a business and became the richest man in the world. She also received the honor of " striking the bell " when the new emperor ascended the throne. Her fate gradually turned for the better, and she was conferred the title of a first-grade imperial concubine, becoming a big winner in life.
Since I don't have direct experience with this 'kyonyuu elf oyako saimin visual novel', it's hard to say precisely. However, generally in visual novels, they tell a story. Here, perhaps it has a plot centered around elves. The 'kyonyuu' might refer to some characteristic, and 'oyako saimin' could be related to a certain event or concept within the story's world.
Liu Yuru's background was the female lead in the TV series " The Long Wind Crossing." She was the eldest daughter of the Liu family. Her father doted on her concubine, so she did not receive the treatment of the eldest daughter. However, her true identity was gradually revealed in the play. She was actually the illegitimate daughter of the current king. Her mother, Mother Liu, had a relationship with His Highness, but she was forced to marry Father Liu. In the play, Liu Yuru showed the growth process of her career from a down-and-out daughter to a model girl in the eyes of everyone, and then to using her intelligence to make a career. She did not rely on men and grew up in troubled times to find her true self.