Destiny Lovers

fujishirou kousuke is currently an unfriendly and unsociable high school student. however, when he was younger, he made a promise with his childhood friend, sayaka, that they would get married when they grew up. but one day, kousuke is kidnapped and taken to a place that strangely resembles a prison. little does he know though, is that this “prison” is guarded by very voluptuous women… can kousuke remain a virgin to fulfill his promise to sayaka?