Akko‑chan is a bright, energetic fifth‑grade elementary student whose father works as a newscaster and whose mother is a picture‑book writer. She treasures the palm‑sized mirror her father gave her and always treats it with care. One night, her absent‑minded mother accidentally breaks the mirror. Under a full moon, Akko‑chan buries the shards in her garden and falls asleep. She is awakened by a soft, kind voice belonging to the Queen of the Mirror Kingdom, who thanks her for loving the mirror and presents her with a magical compact mirror. Whenever Akko‑chan sings the enchanted words, she can transform into anything.