What is natto shogun?

Natto Shogun (納豆将軍, Nattō Shōgun) isn't a single, well-defined entity like a historical figure or a specific product. The term likely refers to a few related concepts:

• A nickname or playful title: It might be used humorously to describe someone who is extremely enthusiastic about natto, the fermented soybean dish. Given the strong and acquired taste of natto, someone with a fondness for it might be playfully referred to as a "Natto Shogun" implying a powerful, unwavering devotion to the food.

• A brand or product line: There might be a small, localized brand of natto or natto-related products (e.g., seasoning, recipes) using this name. This would be specific to a particular region or online store and not widely known internationally.

• A fictional character: It could be the name of a character in a manga, anime, novel, or other fictional work. The character might have a strong connection to natto, either through their personality or profession.

Without more context (e.g., where you encountered the term), it's difficult to give a more specific answer. If you can provide additional information about where you heard about "Natto Shogun," it might be possible to pinpoint the exact meaning.