BENTO EXPO Season 6 Episode 4 Yaki-udon Bento & Rice Korokke Bento ( Air Date 2021-05-31 ) Genre Reality category. Overview "Marc's bento features sweet and savory Yaki-udon noodles. Maki makes rice croquettes filled with cheese for her Rice Korokke bento. Bento Topics features Poland's favorite dish, pierogi dumplings.".