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聖なる乙女と秘めごとを
聖なる乙女と秘めごとを, The Holy Maiden and the Secret, Seinaru Otome To Himegoto Wo
"Please teach us naughty things." One day, Itsuki is transported to another world, where he is confronted by sisters who serve the goddess. In order to return to the real world, he must give them practical sex education!
