巨根で生ハメ王になれる学園 ～女子学生みんな孕ませ肉オナホれすッ！いつでもどこでも精子様を排泄して卵子屈服させてくらしゃいっ♪～

It's every teenage boy's dream! The entire school is a harem of horny girls who'll happily take a jizzload!

The instant they pulled down his pants, the world changed.
The protagonist was being bullied at the student council meeting when suddenly -- flash! His exposed penis transfixed all the girls. He had his choice of any girl, but focused on three in particular: the class president, the fencing club girl, and his angelic kohai (junior).