Yoichi offers to be Kazuma's partner as he takes on a challenge from the Naniwa Donburi Brothers, twin young chefs said to be geniuses at making rice bowls. Kazuma doesn't agree to teaming up with Yoichi, but Yoichi senses something extraordinary in the twins' intensity. Astonished by the taste of the twins' curry bowls, Yoichi begins researching curry bowls while helping out at another restaurant.
「浪速のどんぶり兄弟」の挑戦を受ける一馬に、相棒となることを申し出た陽一だったが、一馬に拒否される。双子のカレー丼の味にがくぜんとした陽一は、ほかの店を手伝いながらカレー丼の研究を始める。