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Uso no Tsukenai Otoshi Goro

嘘のつけないお年頃

In Japan, a strange disease called "dissociative true feelings" has become epidemic among teenagers. It is not life-threatening, but when an infected person gets excited, an alter ego appears and blurts out their true feelings without any filter. Satsuki, a second-year high school girl, developed the syndrome after an incident in junior high, which also cost her the ability to speak normally. Since then, her twin sister, Sayoi, has strictly avoided contact with the opposite sex to protect Satsuki, who can no longer hide her emotions.

One day, Sayoi meets Shougo, a boy who suffers from the same disease. His presence begins to stir something in both sisters, and the careful balance of their relationship starts to shift. As the twins navigate a world where hidden feelings can no longer stay buried, their bond is put to the test.

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