Lu Chenyue is a 7-year-old second-grade student and the younger sister of Lu Chenxi. She is sensible beyond her years and has a remarkably large system space of 100 cubic meters. Her luck improved dramatically after winning a 300,000 yuan lottery prize that saved them from poverty. In the survival game, she received abundant supplies from her daily check-in: 10 bottles of purified water and 10 pieces of bread. She is deeply attached to her sister and relies on her for guidance and protection.