
From creepy pears in the shape of a baby to heart-shaped lemons and watermelons, Japan has the market cornered on unusually shaped fruit. Now we’ve come across a five-sided orange produced in Ehime Prefecture. What’s more, these pointed fruits are supposed to help you pass your school exams!
The pentagon-shaped iyokan, a Japanese citrus fruit similar to an orange or mandarin, were grown by the Hizuchi Tachibana 4H Club. Not only do they have a unique shape, the fruits have a cute play-on-words name, as goukaku iiyokan can mean “pentagon iyokan citrus” and “to have a good feeling about passing” depending on the Chinese characters used. It seems the oranges were created as a good luck charm for students gearing up to take their exams.
▼ Pentagon oranges and their happy inventors.
The idea was conceived five years ago and it took a full three years for a successful crop of pentagon oranges to be produced. Farmers must carefully encase each fruit in a mold, which presses up against the fruit as it grows to form the pointed sides.
Packed with vitamin C, good for cold prevention and equipped with a clever good luck name, these pentagon oranges are sure to be an exam season staple in the coming years.
[ Read in Japanese ]




Japan’s gorilla poo oranges are now in season, and being given away for free!
Your favorite sparkling orange juice is becoming a sweet snack you can eat any time
Orange-flavored rice balls: Japan’s newest way to fuse vitamin C and carbs
Mandarin orange peels aren’t trash, they’re treasure! Three chimpi tips to reuse your mikan skins
New sakura Kit Kat range celebrates cherry blossom season in Japan
New Pokémon anniversary song is 22 minutes long, features all 1,025 Pokémon species [Video]
Lego PlayStation recreates Sony’s original console, makes unusual choice for games to salute
New Japanese convenience store rice balls taste like instant noodles [Taste test]
7-Eleven Japan releases new Tsukimi Moon-Viewing range for autumn, with a must-try daifuku and teriyaki burger
Kyoto temple bans visitors from wearing kimono
Kobe middle schools begin abolishing extracurricular activities, shift to community programs
Starbucks Japan releases new coffee table book featuring 18 of the most unique stores around the country
Japan’s revolving sushi restaurant king Sushiro coming to U.S. this fall with high prices, no tipping
Japan’s Tsukimi One-hand Bento’s name is all wrong, but it still looks entirely delicious
Join Naked in the Niwa garden: Kyoto Station’s newest spot to craft traditional art
Solo travel in Japan: Hidden beer garden in Tokyo is a haven for single visitors
Studio Ghibli unveils new anime calendars and diary planners for 2027
Family Mart releases new Human Made Cup Noodle in Japan, with freebies for Nigo fans
A real-world Pokémon Poké Ball hotel is opening in Japan at a still-secret location [Video]
Japan’s first fall color forecast for 2026 is here!
One Piece Day 2026 brings new art, music, and new cast announcements
Tamagotchi evolves into a ring for its 30th anniversary, preorders now open
Hobonichi unveils new 2027 planners, diaries and stationery with One Piece, Suica Penguin, Hello Kitty and a must-buy Mini Techo
12-year-old British girl who went missing in Tokyo found safe after visiting anime sites around Yokohama
7-year-old boy left behind on Mt. Fuji by his own dad
Japan’s final Penguin Suica train cards have already shipped, and when they’re gone, they’re gone
Sushi Bus: Japan’s first conveyor-belt bus lets you eat sushi while sightseeing around Tokyo
Japanese toilet aims to attract foreign tourists but not everybody is happy about it
New Japanese vending machine at Shinkansen station sells cups of ice on platform
Study finds hundreds of people in Indonesia legally named after Naruto, Inuyasha, other anime stars
Japan approves foreign resident visa renewal fee increases of up to 967 percent, starts soon
Japan tripled its departure tax to fund tourism but is using the money on cherry blossoms and bears
Japan announces sudden 400-percent increase in visa fees for foreigners entering the country
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Studio Ghibli has a new anime out, and there’s only one place in the world where you can see it
Starbucks Japan releases new drinkware and goods for Valentine’s Day
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Japan’s newest Shinkansen has no seats…or passengers [Video]
Tokyo subway installing new ticket gates that don’t accept payment through Suica or other IC cards
Japanese ninja certification exam attracts 131 candidates from Japan and abroad
Salomon releases Japan-exclusive Mt. Fuji hiking gear that doubles as an amazing souvenir
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
Wish your loved ones great success this year with a slab of breaded beef in a sushi roll
Japanese omamori good-luck charm pouches are here to protect your lips as stylish balm holders