After traveling through time for ten years, without cheats or talents, Kiyoshi Tousaka has already accepted his ordinariness, and now he has to live an ordinary life. Then he met this noble lady in a gorgeous kimono under the snow. "I need your help." That's what she said. In the rainstorm upstream, his ordinary life changed. Many years later... "Which of us is your first love?" Looking at the two girls in front of him who looked like twins, Kiyoshi Tousaka fell into a long silence. The current situation is not that he is trapped in the Shura field of twin sisters, but that his wife has become two. To be precise, these two girls are both his wives. But how can they meet? They are obviously not in the same world! "Haven't you thought of the answer yet?" "You'd better think it over before answering." Kiyoshi Tousaka rubbed his hair frantically. Can't tell the difference! I can't tell the difference at all! I can't do this question! "I choose death, why don't you just give me a knife."

> "Rod, remember this: the prettier the woman, the better she is at lying."

"It's fine, Mom. That's exactly my type."

"???"

◇◇◇

After transmigrating into the Type-Moon universe, he became Beast VI — a Beast defined as the Revelation of the Power to Kill.

Rod once believed that as long as he avoided responsibility and indulged in wine and women, he could certainly escape the fate of the appearance of Human Evil.

But in the end, events spiraled far beyond his expectations.

One by one, the female heroic spirits around him were corrupted by him and turned into Alters...

Altria: Rebellious son! How dare you snatch the queen from my father?!

Mordred: Ghost mother, that's obviously my brother!

Caught between mother, mother, mother, mother, mother, mother, mother... and my sister, the Shura field