Sorry, I opened a trap again...
I have one article about time travel and one city that I haven't filled in yet. I'm digging a hole again. Don't leak the secret.
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Her name is Lan Xin and his name is Lan Ning
He is the little prince in everyone's heart. He is still cool and charming when he grows up.
She is the little princess in everyone's heart. Everyone loves her and she loves to cling to them. She is still cute and touching when she grows up.
He is her brother, doting on her and pampering her.
She is his sister, she sticks to him and likes him