Xu Nian'an finished his bath and lay in bed, thinking for a long while before he finally realized what felt odd.
Even if he didn't ask for anything, if he really needed his little sister's help, wouldn't she still assist him?
Xu Nian'an turned over in bed and stopped thinking about it; as long as his little sister was happy, that was all that mattered. After all, he wasn't copying those formulas for her gratitude.
With that thought, Xu Nian'an put the matter out of his mind. There would be heavy coursework to tackle tomorrow, and he needed to finish copying the chemistry and physics formulas for his little sister early.
...
From that day on, Xu Nian'an began reciting texts article by article with Xu Nianhua every morning, with Xu Nianhua reciting and Xu Nian'an acting like a strict teacher.
Even during their little break times, when they went to the factory, Xu Nian'an would always spot-check which texts Xu Nianhua had memorized.
