Recently, a new supermarket was opened in Changning District of Shanghai. From the outside, it is a typical Chinese chain supermarket. The shelves are full of various food and daily necessities. All the goods in the store,  the appearance is no different from ordinary goods, but the inside is empty, and there is no trace of unpacking on the packaging. Visitors have no idea how the goods were emptied. Although this is a goods-emptying supermarket, it is very popular.
The statement 'Some buyers do not know that it is empty' can best explain the above phenomenon.