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Ringo's older sister who died in a subway explosion on the day of Ringo's birth, and the original owner of her diary. She was friends with both Tabuki and Yuri. <br /> <br />
生日：
年齡：
性別：
身高：
Ringo's older sister who died in a subway explosion on the day of Ringo's birth, and the original owner of her diary. She was friends with both Tabuki and Yuri. <br /> <br />
