Himeji Mizuki is a fictional character from the popular Japanese manga and anime series Kyoukai no Rinne, created by Rumiko Takahashi. She is a high school student who can see spirits and is often involved in supernatural events. Mizuki is known for her cheerful personality and her ability to communicate with the spirit world, which leads her to assist the main character, Rinne Rokudo. In the series, Mizuki's character adds a light-hearted element to the story, balancing the darker themes of life and death. Her interactions with other characters, including Sakura Maki and Tsubasa, showcase her loyalty and determination to help those in need, both living and deceased.