(says she's 20, but she's 30)
Younger Sister of Mother Anju and the Aunt of the Twins. She does research at the hospital in America, but returns to visit Ai-chan after she passes her rite.
She is a bit flamboyant and very enthusiastic. She doesn't like being called "Aunt" and rather be called "Older sister" by Ai and Ai's siblings. She is a Hot witch, like Ai-chan's mother.