After a long and arduous journey, the young hero challenged the Demon King to a final battle—only to be crushed by an overwhelming power disparity!

“Mmmph~♪ Let's see what happens when you defy His Majesty the Demon King... I must corrupt this insolent little hero and make him an example for all humans...”

"Guh... Stop it! You bastard Demon King! What the hell do you think you're doing to me—Aaah!?"

And so, at the hands of the perverted, lecherous Demon King! The erotic fall quest for the young hero-kun begins.

[From official site]