"Tomoaki Naoesa", who works at the beauty and relaxation shop "Smiley Pig", was responsible for serving a strange customer wearing a knitted hat and sunglasses one day. This woman with her ears hidden under the hat and her abnormally swollen body turned out to be an elf from another world. After tasting the delicious French fries here, she ate like crazy and even became so fat that she couldn't lose weight. Others like dark elves, mermaids, and werewolves were also deeply troubled by obesity due to lack of exercise and excessive eating after coming to the human world. Naoesa, who helped the chubby elf Miss Eruza lose weight, was caught up in the troubles of those people from the other world living in Japan and ran around.