Until it got dark, Yan Hua noticed Yun Ya looked tired and stood up, saying: "Xingxing, we've troubled Yun Ya all day, we should go back."
"Wait a moment, I haven't finished this problem yet." Yan Xing was writing furiously.
"Finish it later at home."
Yan Xing belatedly realized, quickly stood up: "Sister Yun Ya, I've benefited greatly from studying with you all day, I'll come over after school tomorrow, hehe, goodnight Sister Yun Ya." She said and then ran off with her textbooks.
Yan Hua smiled at Yun Ya and said: "We've troubled you all day today, I've seen Xingxing's significant progress, thank you very much."
"Do we need to say thank you between us? Xingxing is such a sweet and innocent girl, I think of her as my little sister. I get lonely being here by myself, I'm grateful to have your company."
"Well then, you take care, I'll be off now."
After Yan Hua and Yan Xing left, Yun Ya propped her head with one hand, rubbing her temples.
