The favored child of heaven x a naturally airheaded girl (she really is a little silly)
Fake incest
At first, Shen Yin was always following Ji Huai around, calling him "Brother" this and "Brother" that, looking up at him every day with a sunflower-bright smile.
But Ji Huai thought she was stupid and never let her call him "Brother" in front of other people. If they happened to meet in the teaching building, he would sometimes pretend not to know her.
Later, Ji Huai flew into a rage, his handsome, cold face set in a scowl. "I heard you've been telling everyone you don't know me?"
The girl twisted the hem of her clothes, her doe eyes too timid to meet his. "Y-You told me... not to call you Brother in public..."
Ji Huai snapped, "Fine. So you can call other people Brother, then?"
"..."
Theme: Study hard