We Agreed to Take Him in for One Night, Why Did It End up Like This?

A rainy Saturday. Xu Mo was nestled in his room, playing a galgame passionately. Suddenly, there was a knock on the door. Standing at the door was a soaked girl, wearing a black maid uniform, holding a notebook and pen in her hand. Meng Nianxia? ! She handed over the notebook: [If you work as a maid for me for a day, can you take my sister in for a night? Xu Mo was silent for three seconds. "I'll say it again, I'm not a maid person." He was ready to close the door. The girl held the door tightly with her hands. "... Are you sick? You don't need your hand anymore?" Xu Mo sighed, "Come in and bandage it first." After bandaging, Xu Mo asked her why she didn't speak. The girl wrote in the notebook: Meng Zhiqiu. It turns out that her name is Meng Zhiqiu, and the one just now was her sister Meng Nianxia. Xu Mo followed her to the door of a nearby closed shop—— Meng Nianxia was wearing a maid uniform and was sitting on the steps in the rain, like an abandoned cat. "Qiuqiu... Why are you here?" ———— From that day on, Xu Mo's family had two more maids. A sister who doesn't like to talk much and is very socially anxious; A sister who is not very good at life and is a bit arrogant. And he clearly said that he was not a maid person. "Xu Mo, my sister said she will be your servant for the rest of her life to pay off your debt." "Then she should pay back the money I lent her first." "... She said she would pay with her life." "Then I'll pay you back with the food she cooked first." Xu Mo looked at the plate of charred unknown objects on the table and fell into deep silence.