Story cover for The Devil's Oath by FlashFire06
The Devil's Oath
  • WpView
    Reads 2,671
  • WpVote
    Votes 12
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    Parts 19
  • WpHistory
    Time 1h 21m
  • WpView
    Reads 2,671
  • WpVote
    Votes 12
  • WpPart
    Parts 19
  • WpHistory
    Time 1h 21m
Ongoing, First published Jun 19, 2025
Sequel to "The Devil's Grail"

Long after the Holy Grail War ended in fire and sacrifice, Nero-heir to the Sparda bloodline and destroyer of the corrupted Grail-awakens once more. Summoned into a new era by Chaldea as a Heroic Spirit, he finds himself thrust into the heart of humanity's greatest crisis. Demons stir, timelines fracture, and ancient enemies rise.

Armed with the legacy of his father Vergil and uncle Dante, and haunted by the memory of Mordred, Nero must confront a new kind of war-one not just for a wish, but for the survival of history itself.

The devil has entered the Grand Order. And this time... he's fighting for everyone.
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Heir of Treachery

24 parts Complete

The battle of Camlann was the end of prosperity, and it was all caused by one person. The bastard son, sometimes nephew, Mordred. Stubborn, fiery, cunning. There's a lot of ways to describe Mordred, but the biggest is stubborn. Stubborn enough to deny the very truth to make his truth greater. Every thing has an heir, either unintentionally or intentionally. Someone will claim the mantle of king slayer, knight of treachery, and traitor just for recognition.