Our protagonist is a helper at his uncle’s inn on an island. On this island being in a relationship is frowned upon, but the girls still have lustful tendencies… Two honor students decide that they are going to use our protagonist as an outlet for their sexual frustration! Anytime the girls wanted sex they got it. These were supposed to be wholesome and clean honor students, not sex crazed monsters!
Houkago no Yuutousei 1

During quiet evenings at his uncle’s island inn, the protagonist finds himself irresistibly drawn into the secret desires of two seemingly prim honor students, Ayame and Sora. Beneath their perfect reputations, they crave forbidden pleasure, using him as their willing partner—each encounter a desperate release of suppressed lust. What begins as discreet trysts soon spirals into passionate, uninhibited sessions, blurring the line between duty and raw, hungry passion.