[Tera] The demon king and the holy priestess

A dutiful maid at a wealthy mansion dotes on the young master she's assigned to assist, but one careless kick to the groin leaves him crumpled and blushing as she insists on a thorough hands-on inspection — after all, his balls are key to keeping the family line alive, and her clinical handling of his small penis leaves him squirming. Beneath the estate, the demon king broods in a secluded cell sealed behind five layers of magic barriers, his power drained and his armies cut down by the hero. When three would-be kidnappers corner the pair in town demanding ransom, the maid's protective fury finally gives her an excuse to test her secret technique on helpless male targets.