Before we could say anything else, a child's crying voice broke just outside. An old lady walked through the door and spoke to the old man, "Look at your grandchild! He is not coming off the electric car that he just got on outside! He's not listening no matter what I say!" Aunt Fen scrambled forward, saying, "We'll have ways for him to show himself, but we'll just need you to help calm him down when he comes!" She held out a key, "This is the key for the electric car outside." Before Master Six's eldest brother could yelp any protest or assent, a portly man walked through the door this time. When he saw Mr. Zhang and Aunt Fen, he immediately addressed them respectfully, "Master Zhang! Mrs. Zhang!" He took the key from her and muttered a quick "Thank you" before walking out. Next, we heard him saying outside, "Come on, son! There's no need to cry! Come, let Daddy take you for a ride!" So that man was this old man's grandson! He's also Mr. Zhang's business
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