Ninja Meshi no Uta Episode 5

Once a ninja was on a mission, he would sometimes go without food or drink, so he needed emergency food called "ninja food." We are modern ninjas too, and we are always under a lot of stress. "Ninja Meshi," a modern version of ninja food, is a gummy candy with a hard texture that locks in the flavor of the ingredients. Chew it to your heart's content and satisfy your hunger! (Source: Official site, translated)