They even teach you how to perform night duties when you become royalty?!

※A world where men can also become pregnant and give birth ○
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You grew up in the working-class district, but one day, you are suddenly summoned to the royal castle.

It turns out you are blood-related to the royal family and are to be welcomed into the castle as a successor to the throne.

What's more, your engagement to the First Prince of the neighboring country has already been arranged.

The one who appears before you, who is to receive an education on how to live as a royal, is your personal tutor, Jill Howard.

A brilliant man who excels at everything.
He has a calm and polite demeanor, yet there's a certain allure about him, and his sense of distance is oddly close.

For you, who knows neither royal knowledge nor etiquette, Jill's strict yet elegant education begins.

――However, you do not know yet.

That this tutor has a major secret.