Mysterious Disappearances

A Curiosity, a Maid, and a Cultured Young Lady (1x6)

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Shizuku is looking for Tomoko, who disappeared on a rainy night a year ago. Based on Tomoko's final video call, Adashino has a guess about the Curiosity, but he has a few concerns. Oto wants to help Shizuku, so she begins her own search.