The Three Charms - Lonesome Spirit

Byakunen

A boy with a peaceful, and shy personality.
Is often mistaken for a girl due to his slender frame and clear skin.

While training to become an exorcist, he gets swallowed up into a mysterious jar.
He does not do battle with spirits, choosing instead to win via escape.
Despite his hard training, he is still weak to seduction.

Sapsalus

A spirit of another country.
A prideful and strict personality on the outside, but it doesn't appear to be her true self.
Is skilled at using sweet whispers and seduction techniques to allure men.
She collects semen using a hip-shaking technique that more resembles a dance.

Her skin is wrapped in a sticky liquid, which gives you the unmistakable pleasure of non-human sex.

???

A mysterious spirit with a voluptuous body and a soft voice.

Shows mysterious kindness and compassion towards the protagonist,
but her true form is a powerful monster known to all...

Magatsu

The protagonist's master, who rules a youkai mountain.
A user of powerful techniques, but she is overly lenient with her disciple.
She also tries to sneak into bed with him, and cross over the boundary of master and disciple.