Nanbu, Chitose

南部千歳

She represents the Human Realm, and while she has a crush on Ikkou, she constantly denies it. Although she acts nice much of the time, she fails to admit her crush to herself or Ikkou, often harming him when others flirt with him, making her overall a stereotypical tsundere.
She is usually the first to put Ikkou down as low as possible at times, as well as beat him with little provocation. She claims to have no hobbies initially, although she enjoys horror films.
She is one of the characters in the series that is harassed by Yuuko for her large cup size, perhaps more frequently than the others.
In early episodes, there is a running gag regarding the question of where she used to live, with one of the clues being that the entire town's businesses (post office, movie rental, clothing store, etc.) are located in one small two-story building.