April 4th.
This kind of banquet is also very particular. First, they will provide guests with some teenage girls. Most of the guests will choose based on their appearance. Later, they will also choose "shit" flavors, such as strawberry, Banana flavored.
The selected girls can only eat vegetables for 2 months to purify their intestines. There are generally three types of food at Japanese shit feasts: staple food: virgin shit, drink: shit wine, and snack: shit beef jerky. The "Shit Banquet" is composed of these three kinds of food, which is also one of the most expensive foods in Japan.