That's what I was thinking.

[ Do-yoon's investigative skills are at it again. He noticed a few pots and pans, too. These places are pretty well set-up, actually. ]

So vegetables, eggs, rice, and maybe some cheap meat... [ Put all the clues together and you've got: meal plans. [Success!] ] How much do you think things cost here? Should we be holding hands to make sure we have enough money?