Blue Archive, A book that crosses the line 5. É aniversário de uma das garotas do Sensei, e por conta disso seu harém organiza um evento pra ela transar durante o aniversário, apenas podendo provocá-lo até que chegue a hora certa com um tipo de tônico afrodisíaco, mas uma delas se empolga demais e o faz gozar antes da hora.
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