Yotsuha Miyamizu

宮水四葉 宮水 四葉（みやみず よつは）

Gender:Female
Age:9

Mitsuha's younger sister. A high school senior. After Hina's disappearance, in the scene where the clear weather returns to Tokyo, she looks up at the sky with two classmates from the school balcony and says, "Somehow, it makes me want to cry."