After her mother, who ran a mobile bento shop out of a food truck, suddenly passes away, high school student Yuki finds herself all alone. While grieving, the recipe book her mother left behind suddenly begins to glow, and before she knows it, Yuki has been transported to another world! There, she meets Edgar, a shy inventor, and Loki, a talking rabbit. Through a strange turn of events, Yuki begins serving her homemade bentos to the people of this new world, and word of their heartwarming deliciousness eventually reaches even the king! Yuki then sets out to make the dream she once hoped to fulfill with her mother, selling bentos from a food truck, a reality in this new world.