天宮潮, Usio, Lady Hydrangea (紫陽花の君)
Haines best friend who is very protective of her. She seems to regard Haine as being more than just a friend although Haine herself doesnt realize it. She is known as Lady Hydrangea by the boys at school. Unfortunately she absolutely despises boys but was indulging herself with them to get Haines attention. She dislikes social climbers especially students in the higher ranks. She is also very knowledgable of Japanese quotes and proverbs.