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Fui ni Arawareta, Toshi no Hanareta Gimai no Hanashi

不意に現れた、歳の離れた義妹の話

Ryu, a delinquent boy, is surprised when his estranged father makes a rare visit home. His father leaves behind Suiren, a girl twelve years younger, telling Ryu, "This is your stepsister." Thus begins their life together as stepbrother and sister.

Initially bewildered by the sudden arrangement, the two must navigate their new relationship and find their way toward becoming a family. Their daily lives are filled with awkwardness and small discoveries as they learn to live together.

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