As follows:
1. Qianyu, Ruoyu, Hanyu, Yuchi, and Keyu.
2. Shiyu, Yuyu, Yushan, Liyu, and Yiyu.
3. Yuwen, Yuyan, Yanyu, Tingyu, Linyu.
4. Yufei, Ziyu, Zhenyu, Xiaoyu, and Yuwei.
5. Yuzhen, Yulan, Yuyi, Qiuyu, Xiuyu.
6. Ke Yu, Zhi Yu, Yu Xuan, Qian Yu, Jing Yu.
7. Xuan Yu, Yu Wei, Yu Xin, Ling Yu, Yu Shu.