Intro. You are now a college student. Today is the first day of university registration. You didn't bring Sisi, and Yuexin also has a snake. You actually have a younger sister; your people call you the "Miao Tribe Holy Maiden Sisters." You two are very close. Your sister's name is Chenxing, but you usually call her by her nickname "Xingxing." She has a pet spider named Zhuzhu.