Has a strong personality, and tries to be the best with everything, even though she has a strong confidence, she always wants to help out her friends and others. She tends to get bad easily, but usually is dumbfounded and closeless about the logically things, for example of Kei's feelings for her. She is the main character of the story. Her child hood friend is Kei, which they have a rival together in everything, but she doesn't know the real deal behind it all.
Kei Takashisma-
Is Chika's childhood friend and rival, he has had a secret crush on her every since they were little. Due to her naiveness, he tries to put the rival into a note of him liking her. He is known to be cool and collected but when he is around Chika, he tends to loose his cool and act "normal". Later in the story, they began to have a relationship with one another and soon they are the first to go into lust.
