Bafun uni (horse dung sea urchin) is a type of sea urchin popular in Japan, characterized by its small shell and vibrant orange roe. The name comes from the resemblance of its shell to horse dung. Its flavor is rich, sweet, and refined, with a creamy texture that melts in the mouth. It is commonly eaten raw as sashimi or sushi to fully appreciate its delicate taste.

Bafun uni is primarily harvested in Hokkaido and the Tohoku region, with summer being its peak season. Due to its rarity, it is considered a luxury item, often commanding high prices. A small box (referred to as “hako”) can range from several thousand yen to over 10,000 yen, depending on the origin and quality. Its exquisite taste and premium status make it a favorite for special meals and gifts.