21. According to the plot introduction of the novel "Campus Flower Protector", Ji Tianyu is the heroine in the novel. In the novel, he has 21 wives in total, namely Yue Qingya, Qiao Xiaoqiao, Leng Bingbing, Ye Mengying, Sun Xinxin, An Keke, Meier, Song Yumei, Yi You, Yin Yunqing, Zhao Yuji, Zhao Yaoyao, Chu Yao, Liu Meng, Liu Yunman, Song Wei, Mu Han, Shu Jing, Ning Jie Wang, Xiao Ya , Zhao Qingqing.