Natsumi loves lunch. By chance she starts working for "Kitchen Macaroni", posing as the fiance of the owner's eldest son, Kenichiro. Kenichiro's father Kenzo and his three younger brothers - Yujiro, Junzaburo, and Koshiro - run the restaurant, famous for its omelet. Also working at the restaurant are Mamoru, a chef, and Minoru, a live-in apprentice cook. Not everyone has a liking to Natsumi at first, but over time they will surely fall in love with her...