i was able to become a court mage in the elven country, so i tried sexual mischief with the princess.

Keith (the main character), who has become a hero in the elven territory where there is not much relationship with humans, coincidentally overlaps with a misunderstanding and is appointed as a court mage.

The king, who expects Keith to be a powerful man, asks Naia, a daughter and princess who can not use magic by nature, to bestow magic on him.

Naia is adored by Keith, who is a cute only daughter and a hero loved by everyone, and becomes more and more fond of him.
of course i don't doubt it!
Keith pretends to be a treatment and lets you remember "Iku" and lets you do it with a blindfold twin tail.
Let the innocent princess scream dirty talk, until Gonzo!
She who does not think that it is a naughty thing at all grows into a princess bitch who does not do the ideal of only him.

And the escort knight Aisha who has learned of the foolishness of the princess to protect Naia, but to a certain promise with Keith ──

偶然と勘違いが重なり人間とあまり関わりのないエルフ領で英雄となってしまったキース（主人公）は、とんとん拍子に宮廷魔導師に任命された。

キースを実力者だと見込んだ国王は生まれつき魔法が使えない娘、姫であるナイアに魔法を授けてくれと頼み込む。

ナイアはみんなから愛される可愛らしい一人娘で英雄であるキースに憧れどんどん懐いていく。
当然疑うことなどしない！
キースは治療と偽りながら「イク」を覚えさせ目隠しツインテールでペロペロさせたりとやりたい放題。
無垢な姫様に淫語を叫ばせ、ハメ撮りまで!
それがエッチなことだとはまったく思わない彼女は彼だけの理想のはしたない姫ビッチに成長していく。

そして姫様の痴態を知ってしまった護衛騎士アイシャはナイアを守るため、キースとある約束をするが──