Heroine: After Breaking up with Her Girlfriend, She Met Her Sister

Su Chen traveled to a world of female lords. Here, the social status of men and women is opposite. Boys stay at home to marry and raise children, while girls work hard for careers outside. At the same time, girls who want to get married need to get gifts and pursue boys, while boys must pay attention to chastity. Fortunately, Su Chen successfully fell in love with a young lady, but they broke up due to unknown reasons. Until one rainy night, he picked up his ex-girlfriend's biological sister. The girl was soaked all over, but she still stubbornly called him brother-in-law. Su Chen originally thought that he was just taking in a rebellious daughter who ran away from home. Who would have known that the girl would start researching his preferences on the first day she moved in? At the same time, the rich ex-girlfriend who broke up a year ago also came to visit.