Hime Jiru

The bespectacled and beautiful maid Mitsuka appeared out of the blue one day.
I, who was living alone in Japan, was brought to the Wiekries Kingdom, and made to transfer into the Royal Academy for Royals and Aristocrats as the prince of a forgotten country.

The reason for bringing me to this Academy?
Long long ago, in a time when there were witches, a "curse" was laid on royals and aristocrats.
Breaking that curse, and saving every princess and their respective kingdoms could apparently only be achieved by me.

The method for breaking the curse?
"With the accursed", do "lewd things" and "collect juice".

With the cooperation of princesses, ladies, and even maids, in a Royal Academy much like a castle in a fairy tale,
"Come, it's the start of juice collection!"

(Source: VNDB)