Shu Xinke, a sophomore girl in high school with two younger sisters, is known as the eldest sister in the class. Everyone in the school knows her, but even so, her grades are not very good. For her sake, her parents managed to get her into a famous aristocratic school. On the first day of her second year of high school, Nanfeng, a boy from a well-off family and arrogant, broke into her life. They went from hating each other to liking each other. When everyone had feelings, the third sister, Shu Xinru, spoke out what was in her heart. Should Xin give up or hold on tightly?