Haine's best friend, who is very protective of her. She seems to regard Haine as being more than just a friend, although Haine herself doesn't realize it. She is known as "Lady Hydrangea" (紫陽花の君) by the boys at school. Unfortunately, she absolutely despises boys but was indulging herself with them to get Haine's attention. She dislikes social climbers, especially students in the higher ranks. She is also very knowledgable of Japanese quotes and proverbs.
Later in the manga, she says she loves Senri.