The sudden, nonsensical remark from my sister took us by surprise, but before I had a chance to ask, I heard Lin Xue suddenly exclaim, "Aiya!" and she fell to the ground.
I looked at Lin Xue lying on the ground with an embarrassed expression, a mass of black lines over my head. I'd heard of some girls being so clumsy that they could trip over flat surfaces, but could that really happen to Lin Xue?
Or was it... slippery ground?
I examined the scientifically designed, non-slip pattern on the ground and Lin Xue's travel shoes made specifically to prevent slipping, then decisively abandoned the idea.
"Aiya, Little Xue, you're too careless. Haven't I told you before..."
My sister reached out a hand to Lin Xue on the ground with an exaggerated tone and a hint of a triumphant smirk, to which the latter immediately shouted, "Stop! I surrender! Please don't say another word!"