Saikano

Season 1, Episode 12: Love Song

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Chise has lost her ability to speak and her mental and physical condition has deteriorated gravely. Shuji desperately calls for Kawahara to take her back and save her, but he warns Shuji that Chise will never be the same again. Shuji discovers Chise's exchange diary, and in it there's one simple request for him: To go back to the place where they first kissed.