C689 Have a Good Exercise

"My brother..."

Gu Nian's helpless expression froze in an instant. Her expression was tense and stiff, as if she was hesitating about something. She blinked her eyes awkwardly, "My brother's words are a little difficult to handle..."

If it was a small matter, Gu Handong would not have said anything to this biological sister. Anything could be said to be obedient. For her