When you visit Japan in the autumn, you’ll likely see menus featuring “Tsukimi” (moon-viewing) items at many fast-food chains and restaurants. “Tsukimi” is a traditional Japanese custom of admiring the full moon, and in the culinary world, it refers to dishes that use a round egg to resemble the full moon. The appearance of “Tsukimi Burgers” with an egg on top is a classic sign of autumn in Japan. However, in the fall of 2025, the major Japanese convenience store FamilyMart has taken this tradition in a completely new, and wonderfully “crazy,” direction.
It’s called the “Tsukimi Haitoku Meshi”, which roughly translates to “Moon-Viewing Immoral Meals.” This limited-edition series of 10 items combines the traditional Tsukimi (egg) theme with forbiddenly delicious ingredients that make you think, “I know this is bad for me, but I just have to eat it.” This unique concept has gained explosive popularity, especially among Japan’s youth, becoming a social phenomenon that sold over 2.1 million items in just the first week. This article is your complete guide to the world of “Haitoku Meshi”—a junk food paradise that will make your trip to Japan outrageously delicious.
A Guide to Japanese Food Culture: “Tsukimi” and “Haitoku”
“Haitoku” originally means “immoral,” but in recent Japanese slang, it’s used affectionately to describe something that feels so good it’s almost sinful—like a food you know is high in calories, but whose delicious temptation is impossible to resist. FamilyMart decided this “guilty pleasure” feeling is the ultimate spice and defined the following five ingredients as the core “immoral ingredients”:
- Seabura: Pork back fat. Often added to ramen, it gives broth an incredibly rich, savory, and sweet flavor that is highly addictive.
- Ninniku: Garlic, the magical aromatic that needs no introduction.
- Karaage: Japanese-style fried chicken, a beloved soul food.
- Mayo Sauce: Japanese mayonnaise is famously creamy and less acidic, used in a huge variety of dishes.
- Cheese: The universal king of indulgent ingredients.
The “Tsukimi Haitoku Meshi” series pursues the ultimate “sinfully delicious” taste by combining these five ingredients with a “moon-viewing” egg (or egg-yolk-style sauce).
Your Complete Guide to All 10 Sins! Which Will You Choose?
Now, let’s take a look at all 10 of the “Immoral Meals” that have Japan in a frenzy!
Rice Dishes: Taking Japanese Rice to a New Level of Junk
“Giant Onigiri Tsukimi Onigiri Mayo-Tama” (328 JPY, tax incl.): A gigantic version of the iconic convenience store “onigiri” (rice ball). The rice itself is mixed with a garlic-mayo sauce containing pork back fat, and inside, a whole boiled egg is hidden. It’s a truly satisfying beast of an onigiri.
“Garlic & Pork Fat Fried Chicken & Pork Yakiniku Tsukimi Don” (668 JPY, tax incl.): This is a true festival of meat. On a bed of rice sits both sweet-and-savory “yakiniku” style pork and juicy Japanese fried chicken, or “karaage.” As a final blow, it’s topped with a garlic sauce and melted pork back fat. Mix it all up with the soft-cooked egg for a taste of pure immorality.
“Tsukimi Tenshinhan (with Pork-Fat Fried Rice)” (698 JPY, tax incl.): “Tenshinhan” is a popular Japanese-style Chinese dish of a fluffy crab omelet over rice, covered in a thick, savory sauce. This version takes it to another level: instead of plain white rice, the base is a rich fried rice cooked with garlic and pork fat. It’s a surprisingly delicious and junky evolution.
Noodle Dishes: Forget the Calories and Slurp with Abandon!
“Extra-Large Thick Noodles! Tsukimi Karaage Garlic Mayo Pasta” (646 JPY, tax incl.): Many travelers are amazed by the quality of konbini pasta, but this one is on another level. A massive serving of thick noodles is tossed in a potent sauce based on garlic and mayonnaise. Topped with large pieces of fried chicken, an egg yolk sauce, and even more mayo, it’s a true celebration of carbs and fat.
“Menya Kokoro Supervised! Extra Pork Fat & Garlic! Tsukimi Taiwanese-style Mazesoba” (698 JPY, tax incl.): “Taiwan Mazesoba” is a soupless noodle dish from Nagoya, where thick noodles are topped with spicy minced pork, chives, garlic, and a raw egg yolk, all mixed together before eating. It’s already the king of junk food, but this version, supervised by the popular Tokyo-based shop “Menya Kokoro,” takes it further with “mashi-mashi” (extra-large portions) of both garlic and pork fat.
“Stamina Ramen Suzuki Supervised Immoral Garlic Soy Sauce – Now with Egg” (288 JPY, tax incl.): This is an instant cup noodle. Supervised by the popular, always-lined-up Tokyo ramen shop “Suzuki,” it recreates their signature wild flavor of intense garlic in a rich soy sauce broth. For the Tsukimi season, this special version comes with extra egg topping, making it even more indulgent.
Other Items: A Single Bite of Delicious Guilt
“Drown in Cheese! Tsukimi Cheese Burger” (430 JPY, tax incl.): This is the most popular item in the series, with sales far exceeding expectations. True to its name, this burger is all about the cheese, featuring a staggering three slices of rich cheddar cheese melting over a juicy patty and a fried egg. “It’s on another level!” and “Absolute perfection for cheese lovers” are just some of the rave reviews on social media.
“Tsukimi Garlic Bacon Potesala®” (320 JPY, tax incl.): The classic Japanese “potato salad,” a staple appetizer at pubs (izakaya), gets an immoral makeover. Seasoned with garlic, pork back fat, and mayonnaise sauce, it’s transformed into a powerfully flavored dish that pairs perfectly with beer or sake.
“Tsukimi Carbonara-style Gratin” (578 JPY, tax incl.): A rich gratin made with penne pasta in a creamy, garlicky cheese sauce, topped with both melty mixed cheese and Parmesan. Break the egg yolk sauce in the center and mix it in for an even richer, more decadent carbonara-like flavor.
“Pork Fat Garlic Tsukimi Man” (210 JPY, tax incl.): The iconic hot steamed bun, a fixture of Japanese convenience stores in winter, has also joined the immoral ranks. The pork filling is seasoned with rich soy sauce, pork back fat, and three types of garlic (minced, chopped, and fried), tasting almost like a thick ramen broth. In the center is a gooey egg yolk-style sauce. One bite and the aroma of garlic fills your mouth.
Summary
The total calories sold from the “Tsukimi Haitoku Meshi” series in just one week exceeded 960 million kcal. In a humorous press release, FamilyMart calculated this is equivalent to the energy needed to walk from the Earth to the Moon and back about 25 times. This fun fact shows just how crazy Japan has gone for this “sinfully delicious” flavor.
This fair is a uniquely Japanese event, blending the traditional food culture of “Tsukimi” with the modern pop culture of “Haitoku Gourmet.” When you visit Japan, be sure to stop by a FamilyMart and experience for yourself the blissful taste that lies beyond the guilt of calories. It will surely make your trip delicious, fun, and unforgettable.
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