Nagaoka Chitose

She is a young wife in her first year of marriage, and she and her husband, Seigo, are appropriately in love. She is serious and elegant.

Reimi overhears that her husband is a serious man and not satisfying her. She does not tell him and discusses it with the protagonist, who helps Chitose by having her have relations with Ryouji.

She has anal intercourse with Ryouji because her husband owns her front hole. However, she gradually gets used to getting pleasure only through anal intercourse and becomes addicted to it.