Reincarnated Hero System - Chapter 540 Mountain’s Keep: Inner Castle

Disclaimer:The characters, settings, locations, and images used in this fanfic are the property of their respective creators and/or copyright holders.This fanfic is a non-profit work, created solely for entertainment purposes, with no intention of infringing any copyright.—Synopsis:Aiden was killed by a woman who stabbed him for unknown reasons.Upon losing his life, he encountered a mysterious cosmic entity that offered him a deal:Protect a world from invaders for 100 years, and in return, receive a second chance at life.Without hesitation, Aiden accepted the agreement.For a century, he fought bravely to defend that world.Finally, after fulfilling his part of the deal, he left that place behind and moved on to a new destiny, now with the incredible gifts he had acquired over all that time.—Main World:High School DxD and some slice-of-life anime.Other Worlds:- Isekai wa Smartphone to Tomo ni—Tags:#Date A Live#High School DxD#Isekai wa Smartphone to Tomo ni#Neutral-Good Protagonist#Faction Creation#Sacred Gear Creation#Harem#No Yuri#No Netorare / NTR#Parallel World

In this period where countless supporting lead actors always attempt to counterattack, turn over a new leaf or simply refuse to take up the role, his purpose of existing is to fill the role of a good supporting male lead and uphold his duty to the best of his ability. To add the needed lustre to storylines and this world. Only, it’s a pity that someone who is not afraid of god-like enemies will be afraid of pig-like teammates.

Bitterly, he realises that for some unfathomable reason, he is being bothered time and again by a bastard who refuses to follow the script… In order to walk the path of a good supporting male lead, he engages in a battle of wits and courage with that person. Loving each other and killing each other, one ultimately cannot escape fate’s teasing– why is it so difficult wanting to be a responsible and diligent supporting male lead?! QAQ

- Description from novelupdates

When Kael died, he thought it was the end.Instead, he woke up in the body of Kaelion Drenlor—the disgraced heir to a powerful duchy in a kingdom on the verge of collapse.In this cruel and mystical world ruled by bloodlines, magic, and ancient deities, Kael isn't interested in playing the hero.Not when being a villain gets things done faster.Cunning, cold, and dangerously ambitious, Kael begins his rise from the shadows.He doesn't shy away from blood or betrayal—and he certainly doesn’t mind bending hearts to his will.As power gathers around him, so do those drawn by obsession, loyalty… and desire.But even as his influence grows, he keeps his true face hidden. Behind the mask of a second identity, he handles the dirty work the noble Kaelion could never touch.In the darkest corners of the realm, he plants the seeds of something greater: a secret organization—The Order of the Black Sigil.Built to manipulate, infiltrate, and control, it becomes a force whispered about in fear.But as Kael pulls strings from behind the scenes, the world begins to see him as more than just a shadowy lord. They begin to worship him.And gods, even fake ones, are dangerous.In a world of schemes, monsters, and ancient mysteries, Kael never asked to be a savior. But one step at a time, through love, lies, and war—he carves his throne from the bones of empires.In the end, only one will sit upon the world.###Before you dive in, here are some things you should know to better enjoy the story:1. The MC is not an all-knowing monster from Chapter 1Our main character is a teenager who transmigrated into a dangerous world. He’s not some ancient cultivator with 500 years of experience. At the start, he’s a bit unhinged (he kills someone in Chapter 1), but still grounded—more of an antihero than a villain.But this is a journey of corruption. As he faces the horrors of this world and gains power, his mindset begins to change—slowly, and then completely. By the time you're deep into the story, he’ll become the kind of villain others whisper about in fear.So no, he’s not your overpowered righteous MC. He’s dangerous, ambitious, and eventually terrifying.2. Yes, there’s romance—but NO, this is not a fast food haremLet’s be real:Day 1: Meet Girl ADay 2: Sleep with Girl ADay 3: Onto Girl BThat’s not happening here.This novel values slow burn, proper development, and emotional payoff. The MC does have multiple love interests, but every relationship is earned. Each girl has depth, motivations, and unique interactions with Kael. No one’s here just for fanservice. And yes—they each get proper screen time.If you’re here for emotional stakes, chemistry, and realistic progression: this one’s for you.3. The worldbuilding is deep and rich.High fantasy. Secret cults. Ancient orders. Political schemes. Forgotten islands. Brutal wars. It’s a lore-heavy universe built to explore.4. The power system is risky and unique.Getting stronger can literally drive you mad. But don’t worry—our MC finds ways to survive (and thrive).Also, each continent has its own power rules—some based on bloodlines, others on potions, rituals, spells or forbidden arts. So expect variety.5. Lots of action and crazy fights.From intense duels to massive battles, this story brings the chaos.6. Side characters matter.No “zombie” side characters here.They have their own stories, motives, and growth. They're not just props for the MC. Some might even surprise you.7. Yes, there are other transmigrators and regressors.But they appear later in the story—and when they do, things get wild.

Countless Heroic Spirits descended upon modern Earth, marking the beginning of the Heroic Spirit Era.Yet no one knew that Souma Kurobane, Alaya’s most beloved Nameless Heroic Spirit, had once traversed countless eras and Singularities.When Jeanne d’Arc was burned at the stake, he fought desperately to save her.When King Arthur and Mordred clashed in a tragic father-daughter feud, he was there to break up the fight.When Qin Shi Huang sought the elixir of immortality, it was he who pointed the way.…In a snowbound vow, he fought for his sister, ending the Holy Grail War in a single night after seven consecutive victories.On the Absolute Demonic Front: Babylonia, he stood shoulder to shoulder with the King of Heroes to battle Tiamat, the Beast of Humanity.At the Temple of Time, he passed down the final magecraft to Romani Archaman in humanity’s darkest hour.…When it was all over, Souma Kurobane sacrificed everything to reset the world, fulfilling his destiny as humanity’s savior, and quietly returned to a peaceful, mundane life.But then — Alaya released the [Nameless Heroic Spirit Chronicles] and exposed him!Revealing to the entire world the deeds of this nameless protector of mankind!Staring at the video stream, Souma Kurobane could almost hear a devilish voice whispering:“Master… you still can’t rest yet~”***For every 100 Power Stones, I'll be releasing two bonus chapters at the end of the week.For advance chapters join my Patreon.Link: patreon.com/aarvanThis is not an original series, it is a translated work. You can find the original work by the name: 某综漫的神圣右方