Joshi Gentei♪ Haramase Harem Gakuen Toshi

In a world of impotent men his erect cock grants him access to the school of his choice. He chooses Joshi Gakuentoshi, an all-female campus where boys traditionally aren't allowed. The girls aren't particularly happy at first but that won't stop his libido! He'll Teach these athletic, intelligent, beautiful and privileged high society girls a punch-drunk pleasure and enjoy as these elite girls drown in a sea of carnal pleasure! He'll teach them the path of ERO and have them worship him as their God!

(Source: dlsite, edited)