Seika Jogakuin Koutoubu Kounin Sao Oji-San Episode 6

It’s been three months since he became an official male prostitute at Seika Girls’ Academy… An old man goes on vacation with three young ladies on a deserted island with gentle waves and dazzling sunlight. On the deserted Shirahama beach, overflowing with a sense of freedom, the sexual desires of the three ladies Tomoe, Miou, and Luisa are unstoppable.
As they purr during their shifts, the old man gives in to his beast-like sexual desires and engages in acts with the girls.
But as the three savor their happiness, the old man and the old man are approached by the shadow of a gal who calls herself a “penis hunter”