Very late comment but that is not them, it is a character from Kiteretsu Daihyakka, same artist/author and trope as the famous Doraemon, but with the role reversed.
Phew~ I finally made it...Phew~ I finally made it...Easy Farm StandThere is no such thing as an evil vegetable seller, so calm down!There is no such thing as an evil vegetable seller, so calm down!Don't be stupid, Kaoru!
Don't be stupid, Kaoru!
Doesn't that way lead to our rival's place, Dad?Why did you nicely tell her like it was nothing..?Meiling made it to the farmer's market. Just as planned.