In a world sieged by monsters, only to be stymied by the high-leveled warriors and mages, a man that is unable to level, even if he was of noble birth, has no future.

But when he discovers an alternative source of experience, delivered with the assistance of some lovely ladies, things change, launching a heroic career filled with adventures, monsters, and a lovely harem to help him on the way...

As soon as he seduces one for himself...