Shouko Yamanobe

She starts out as a delinquent girl, but after befriending Shaorin, Shouko decides to try to bring her and Tasuke together. Her personality softens up after she meets Shaorin and it is seen that she becomes sensitive when it comes to understanding Tasuke and Shaorin's relationship. She is aware of Shaorin's nature. She has an odd habit of being able to appear anywhere, as well as enjoys playing "matchmaker" solely because of all the entertainment she gets from the situation.
Source from Wikipedia