TYPE-MOON:My Mother,manaka sajyou

"Roder, remember this: the more beautiful a woman is, the more likely she is to deceive you."
"It's fine, Mom. That's exactly my type."
"???"
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After being transported to the world of Type-Moon, I became Beast VI—an entity defined as the Beast of Revelation, wielding the authority to corruption. Roder once believed that as long as he indulged in hedonism and avoided serious responsibilities, he could prevent the manifestation of "Humanity’s Evil."

But, events soon spiraled beyond his expectations.
One by one, the female heroic spirits around him were corrupted, turning into Alters.

Introduction:

Roder had a painting framed and hung in the most prominent spot in his home, depicting him and dozens of women partying in a bedroom.

“What is this disgusting picture?” manaka sajyou angrily demanded after arriving home.

“My Mother,manaka sajyou.”

“And what about me?”

“You’re my mother, aren’t you?” Roder replied.