To name the two characters in the novel, one is the brother and the other is the sister, just three words that sound good and have the same surname! Here are some possible names: 1 Yuchen 2 Yu Xuan 3 Zi Yu 4 Yuting 5. Rainy Morning 6 Sichen 7 Yu Lin 8 Zhiyu Sister Yuting 10 Brother Yuxuan I hope these names will be helpful!