Pure Pure

When fourth-grader Miruku Satou wakes up one morning, she is shocked to find a grown woman sleeping beside her! Yet, neither her friends nor family appear puzzled, recognizing the woman as her cousin and teacher, Ruu Horie. Throughout the day, Miruku questions if they've ever met—until she spots a pair of wings on Ruu's back. By the end of the day, Ruu discloses to Miruku that she is actually an angel studying on Earth. Ruu had cast a spell on those around her so she could seamlessly blend in with humans during her stay. However, she's surprised that Miruku isn't affected by this spell and can even see her halo and wings. Miruku pledges to keep Ruu's secret, and in return, Ruu promises to assist Miruku whenever possible. This exchange marks the beginning of their pure and special friendship.