The owner of a sushi restaurant discusses googology (the study of very large numbers) with his chefs and customers.

Sushi: Kokuu-hen was originally serialized in Ura Sunday's U-2 League, where 6 chapters were published. Serialization moved to Manga pixiv on April 13, 2015. One volume was published in print by Sansai Books, which included the first 8 chapters. The series was published digitally in English as a simulpub on Manga pixiv.