Kūi Dōtonbori

, also known as the "Sweeper of the Pot Bottoms", is a competitive eater and a member of Exploding-Till-You-Eat.

Background
Kūi and his son, Daore, travel the land taking part in food competitions wherever they may occur. Kūi has competed against Chōji Akimichi during several prior contests and has lost to Chōji each time. For this reason, he considers Chōji his rival.

Appearance
Kūi is described as a muscular man who is just as tall as his son is fat, which is to say he is very tall. He does not wear a shirt.

Naruto Shinden: Family Day
Kūi and Daore participate in Konohagakure's annual food eating competition. Because this year's contest falls on Parent and Child Day, only parents and their children can enter. Kūi does not believe any of the other competitors pose a challenge to him, describing them all as "small builds, small appetites". The one exception is Chōji Akimichi, who Kūi looks forward to competing against again. When Chōji can't remember ever having met Kūi before, Kūi is insulted and vows to defeat him.

Kūi and Daore end up being one of three parent-and-child teams to make it to the final round. Of the three teams, Shikamaru and Shikadai Nara end up being disqualified for vomiting, Daore faints from eating too much, and Chōji loses consciousness because some lettuce from the previous round gets caught in his throat. Kūi ridicules all of them for being weak. Believing his victory is guaranteed, Kūi starts eating the final round's food: dumplings from Amaguriama. Due to interference from Amaguriama's owner, the dumplings cause Kūi to vomit. Chōji and his daughter, Chōchō, end up being declared the victors.