Famima "Kashiwa Udon supervised by Shisan Udon" and "Katsutsu Tsuji Donburi Style Omusubi supervised by Shisan Udon", limited to Kyushu area!
Kashiwa Udon supervised by Shisan Udon and Katsumiji-don style omusubi are available at FamilyMart (FamilyMart) in the Kyushu region.