My mom, Manaka Sajyou (Fate)

"Ryuuto, just remember this - the more beautiful a woman is, the better she is at lying."

"Don't worry, Mom. That's exactly my type."

"???"

After finding himself in the Type-Moon universe, Ryuuto became a Beast and thought that by living carelessly and enjoying wine and women, he could avoid his fate as an Evil of Humanity.

But things eventually spiraled far beyond his expectations.

One after another, the female Servants around him were corrupted, turning into their Alter versions.