Motto! Ojamajo Doremi: Kaeru Ishi no Himitsu

Doremi, Hazuki, Aiko, Onpu, and Momoko spend part of their summer at Doremi's grandparents' home in the countryside. There they hear an old story surrounding the Frog Stone, a mysterious place tied to a tragic romance and to the days when magic was said to mingle more openly with the human world.

Curiosity leads the girls deeper into the mountain, where the legend begins to feel much less distant than they expected. As unusual conditions weaken their magic and the group becomes separated, Aiko must also face uncomfortable memories connected to Doremi's grandfather, turning the trip into a small adventure about fear, family, and learning to see the past differently.