Already Calling Him Brother-In-Law

Hexin gnashed her teeth in anger.

He'an was a big blabbermouth; having her secret discovered by him was equivalent to letting the whole world know about it. 

"Come out this instant!"

He'an frantically clung to Long Yin's arm. "You're my brother-in-law—you've got to protect me. I'm no match for my sister when she loses her temper."

Hexin bristled and turned scarlet at his words.

Who was that brat calling his brother-in-law?

"Beitang He'an, if you don't come out right now, I'm not going to give you your allowance for this month." 

He'an deflated a little when he remembered that he still had to depend on his sister for his allowances, but when he glanced up at his future brother-in-law standing before him, he regained his confidence. "Could you be responsible for my monthly allowances, Brother-In-Law?" 

Long Yin was flustered by He'an hurling the title at him left and right, but he could not deny that it pleased him immensely.