Type-Moon: Zero Sin, the Pinnacle of Mages and Demons

Synopsis: After transmigrating to Fuyuki City, Xia Yuan thought he could live a quiet life like Yoshikage Kira, until the Holy Grail War dragged him in.

No System, no cheat, not even Magic Circuits. He's just an ordinary person whom a Heroic Spirit sought out on its own.

The King of the Cavern emerges from a circle of light, laughing maniacally: "Kahahahahaha! Are you the one who called me, young man?"

Xia Yuan looks at the Command Seals on the back of his hand and falls silent for three seconds. "...I didn't do anything."

Even more absurdly, Merlin barges into his dream and points at him: "You are a Foreigner, with a rank on par with the evil gods. Go save King Arthur from her endless cycle of reincarnation."

Kayneth takes him on as a disciple, Kariya Matou entrusts him with his life, and Amakusa Shirou tries to recruit him into his plan to save all of humanity.

As for Xia Yuan himself, he just wants to live long enough to see the Holy Grail War end.

But when the eyes of the Grand Order, the Counter Force, and the Alien God all fall upon him at once, he finally realizes...

This war is no longer something he can simply walk away from. He really can't get out of it.

This novel and its characters are entirely fictional. Any resemblance is purely coincidental. Please do not imitate.