Kazuha Koshimizu, a 45-year-old school lunch lady, is summoned to another world while wearing her daughter's middle school uniform. Expecting to be a support character, she discovers she's been mistaken for a child due to her small stature. Instead of fighting the Demon Lord, she decides to use her culinary skills and becomes the royal chef, serving delicious meals like omurice and pudding. This is a heartwarming story of a middle-aged woman finding a new purpose and unexpected adventure in a fantasy world.