The implication was that little sister Yaoyao wouldn't join them, so they didn't need to make one for her.
Tuantuan blinked his eyes but didn't speak.
Then Xie Yihang started to worry again. Their grandparents and great-grandfather were all alone, while he and little brother Tuantuan had prepared houses. Where should they live?
"Brother, let's let Grandpa and Grandma choose for themselves!" Unable to decide for himself, Xie Yihang, for the sake of fairness, decided that the adults should choose.
Tuantuan had no objection and, together with Xie Yihang, brought over the houses they had built with blocks for the adults to choose.
The adults naturally wanted to be even-handed and decided to take both children's houses, living in one for a day and then in the other.
The kids were stunned by this arrangement at first but then felt it was fair, so they had no objections either.
