Theatre, playroom and much more. Its not a mall but a ——

"Miss Yu, what are these?" One of the mers asked as he pointed to the small white ball that smelled buttery and delicious. 

Yu Dong turned to look at the mer who was pointing at the bucket of popcorn and then said, "It's pop corn, the buckets placed in front of the counter are for testing. If you like then you can taste it." She paused and then turned to look at Xiao Hua who was munching on popcorn that he had gotten from Xiao Zimo who was in charge of the snack counter and added with a slightly worried voice when she noticed that Xiao Hua's sharp chin was getting chubby, "It's a little fattening so make sure that you control your intake." 

When the mers heard that this thing called popcorn was fattening, they were a bit hesitant to try. What if they gained weight? But then they were tempted by the tantalizing scent of the popcorn and could not resist, each one of them took a handful of popcorn from the large buckets and then tasted them.