Swallowtail Butterfly Princess of Sexual Techniques

At a corner of the Iridescence continent, where the Butterfly Kingdom rules over.
In the past, people on this continent were assaulted by monsters and rebels,
and they were saved by the first princess of Butterfly Kingdom.
She defeated monsters and men in the rebellion army with
her secret force hidden in her body, "Sexual Techniques".
But lately, it is reported that the unknown darkness is sneakily wriggling.
And strange holes has appeared all over the world supposedly due to
the unknown darkness. So the 19th princess of the kingdom.
The adventure of the princess begins here.