She’s the elder sister of Ayu.
Her younger sister, who tends to borrow her clothes without permission and carelessly soil them, had fallen in a coma, by promptly tripping and falling, getting a bump at a crosswalk. She presented her at the hospital to Rinne and Sakura, who were investigating the cause of her disembodied spirit, and learned that her rashness was because she had soiled her newest dress, but she was more concerned about her not waking up. Nevertheless, her sister woke up thanks to Rinne and Sakura, and she badly scolded her for all the other dresses she had soiled.
- She was not named.