The younger sister of Yousuke, and therefore Yotsuba's aunt. She lives in Tokyo and does not interact with the Koiwai family very often. Seems to be not so good at dealing with children as she constantly keeps a serious expression on her face and is direct with her words. She was first mentioned in chapter 88 by Yotsuba's grandmother and made her first appearance in chapter 97, during Yotsuba's trip to Tokyo. (Source: Azumanga Daioh Wiki)
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The younger sister of Yousuke, and therefore Yotsuba's aunt. She lives in Tokyo and does not interact with the Koiwai family very often. Seems to be not so good at dealing with children as she constantly keeps a serious expression on her face and is direct with her words. She was first mentioned in chapter 88 by Yotsuba's grandmother and made her first appearance in chapter 97, during Yotsuba's trip to Tokyo. (Source: Azumanga Daioh Wiki)
