In a whimsical tale set in the Amakara Castle, Princess Anmitsu, known for her tomboyish ways, receives a peculiar gift for her tenth birthday: a home tutor named Castella hailing from the Pudding Kingdom. Contrary to expectations, Anmitsu's academic endeavors take a backseat as she embarks on escapades outside the castle walls, immersing herself in adventures that unveil the wonders of the world beyond. Along the way, she forges new friendships, stirs up mischief, and challenges the patience of her caretakers within the castle grounds.