Zettai Ryouki Sex Royale!! ~Mujintou Okashiai Battle~

Becomes the world of Josondanpi by improving physical and mental capacity of women, modern man had fled to the two-dimensional escape from the real world as a woman... Yu Watanuki, but de-hero with a mother and father de M de S, his students reached extremely normal.

Suddenly one day, was taken to a deserted island with seven female students, they are allowed to participate in the "Sex Royale". And "Sex Royale", the game was divided into two teams of guys and ladies, with the point the opposing team committed to each other, compete for the sum of that point ... Remain puzzled by the events of sudden unexpected hide, it was the kick off battle with Yu and seven female students, I committed to stage a deserted island unparalleled...