High School DxD: Survival Diary of the Heir of Destruction
Rian Gremory, the rightful heir of one of the seventy-two demonic houses, was born with everything a demon could desire: talent, power, lineage, and a mind as tempered as steel. But after awakening the memories of his previous life—a human life in a world where all of this was nothing more than a fictional story—he realized that his existence would follow a path unlike any other Gremory’s.
Without Rias. Without Issei.
The balance of the world changed before it even began.
Aware that the future no longer belonged to the script he remembered, Rian has spent his life preparing for the inevitable: the war between the heavens, the hells, and that which lies beyond. Now, as the official heir and protector of his lineage, his goal is simple—to preserve peace for as long as he can.
However, fulfilling his role proves far from easy when his greatest obstacle is… himself.
A promise made to his mother—to abstain from any relationship until marriage—has become a ridiculous burden for someone surrounded by supernatural beauties, human temptations, and political responsibilities.
Amid quiet days at Kuoh Academy, family meetings, and a web of worlds beginning to intertwine, Rian Gremory strives to maintain his composure while the order of existence rewrites itself around him.
He seeks neither greatness nor glory; only to fulfill his duty, protect what he loves…
…and avoid breaking the most absurd promise he has ever made.
Author’s Note:
This novel will be updated once per week, with chapters averaging around 3,000 words.
New releases are scheduled for 7:00 a.m. (WebNovel time / GMT+8).
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Chapter 6 – Roses and Thorns2025-11-17 07:05
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