Mahou Shoujo-tai Arusu, also known as 'Tweeny Witches,' is a fantasy anime series that follows the story of a young girl named Arusu who dreams of a magical world. She is transported to such a world where she encounters witches, magical creatures, and embarks on a journey to change the world with her belief in magic's true power. The series is noted for its unique art style and storytelling, captivating audiences with its whimsical and adventurous themes.