Strongest Demon

In his previous life, Sen was a sociopath who accidentally destroyed his world by conducting experiments on centipedes and humans. He then transmigrated into a strange new world where he began his new life as a Beast Killer mercenary ranked at the bottom. Follow his journey as he delves deeper into the pursuit of truth. Please note that the story will be quite dark and there will not be a Mary Sue character. System would awaken later as mc confronts multiple problems.

For Shaden, his life had already crumbled the moment his father was sentenced to life in prison. There wasn’t a single day he could live in peace—everyone looked at him with hatred, as if he were a repulsive insect. He had nothing, except for an old book left behind by his father, which he read every time he longed for him. But one day, the world changed. Things that were once impossible suddenly became real. And that book of his was the key to everything. Can Shaden survive the ruin and save the world? Or will he perish along with it?

Shijou Saikyou was one of the superhero's that protect the people in City Z from monster. It was such a life, not until he finally felt bored on defeating the monsters in just a flick of his hand again and again. Superhero's life was too easy~ Now..... Looking back at new recruit superhero's that was starting to be more powerful than the old recruit since their powers are more inherent and not result of hard work. Shijou Saikyou mostly known as 'Tsuyoi', the strongest superhero, ranking as an SSS in the Hero Organization among the hundreds of superhero's threatens to have some dark thoughts after being crowned as the first ever SSS+ superhero when he had completed hundred of heroic deeds. What if, he was the one being defeated? Tsuyoi lips curved up slightly, his purple eyes flashing with some strange excitement as he thought, 'How fun!'

Agashi, a 26 year old architect is transported to the bloodlake(an alternate reality) to join a host of humans in a gruesome fight against demons. He barely has time to figure out what has happened when he is chosen by the orb of ugin to champion the human race against the mighty lord urug. Will he make up his mind in time to save the human race from the bloodthirsty claws of the demon lord? Will he be strong enough to assemble the armor he needs from the underlords of the blood lake and give himself a fighting chance? Will he even accept the call of the orb to be champion?

Someone who wants to live again. And chose to cooperate with the devil to live again in another world. The boy entered a vortex-shaped portal that led him into the Imperial World. Life and death are at stake there. The various fights between the kingdoms, and the brothers themselves are more terrifying. Because it often moves unseen. Story of time travel that changes the nature of a person's personality. A powerful demon heart scene. Get rid of it with an angel who somehow came from which world? He merged with his body making a big change in his life. The devil's heart was bought into a very loving angel's heart. Coupled with a love story that is so complicated. With a royal concubine. Since the change, Yinwua started to have a good heart. The kingdom is on the verge of collapse. There was a war between the brothers. Love, power, revenge, and change for the better. Could Yinwua the demon king change his attitude any wiser? And, what about Yinwua and Boi Yu a love story, will they meet, or will they be separated because the task has been completed?

A thousand years ago, the Strongest Demon Emperor, Xar'thos, nearly plunged the cultivation world into eternal darkness, only to be defeated and sealed by an alliance of holy sects in a heroic sacrifice. Now, after a millennium has passed, the Demon Emperor is reborn as a poor youth named Aron in a remote village—without power, without memories, and without any remnants of his past glory. The world has forgotten him, and the holy sects have enjoyed a fragile peace, establishing their dominance without threat. However, fate has other plans. As Xar'thos's memories begin to return, an ancient entity known as the "Demon Empire System" activates within him. This system is more than just a guide; it is the key to rebuilding his shattered empire, granting him unique abilities to revive forbidden cultivation techniques, recruit loyal followers, and most crucially, attract powerful women with demonic potential to become his Demon Consorts—the pillars of his new strength and authority. Starting from zero, Aron—who is now slowly reverting to Xar'thos—begins a perilous journey to reclaim what is rightfully his. Xar'thos's journey takes him from a helpless youth to a rising ruler of darkness, rebuilding his army from the shadows. He gathers followers, forms unexpected alliances, and establishes a hidden base of demonic power. However, his rise does not go unnoticed. The holy sects that once sealed him begin to sense the echoes of a long-lost demonic aura. They send agents to investigate, sparking initial clashes that reveal weaknesses and ancient secrets among his old enemies.

Vann died as the most feared Demon King, executed by the blade of the woman he secretly loved, the Heroine Freya. But when destiny grants him a second chance, he wakes up in his sixteen-year-old body at the Aethelgard Academy. Determined to rewrite his fate and win Freya’s heart instead of her hatred, Vann tries to be a model student. However, discarding the darkness is harder than it looks. Every act of kindness he performs is seen as a terrifying threat, and his attempts at romance are mistaken for death vows. Can the former King of Shadows navigate a world of teenage drama and magical exams when his smallest gesture causes absolute destruction?

At school, Elang was no stranger to violence and bullying from his peers. But everything changed when he was suddenly sucked into Tower Ascension—a game he played religiously—trapped in the body of an obscure NPC. To make matters worse, he possessed absolutely no power to climb the tower or fight the hordes of monsters and demons awaiting him. "This is insane! It's a suicide mission!" Elang thought. However, Elang refused to just give up. He had no intention of being a loser here like he was in real life. Armed only with his extensive gaming experience and knowledge of the game's actual protagonist, he resolves to keep climbing. He will navigate the plot his own way, using his gaming strategies to conquer the final floor of the tower.

Transmigration!!!! Yeah,that's it. Jasmine woke up and found herself in a world. What world? a world that was the exact same as the one in her favourite novel. But something didn't seem right. You want to know what didn't seem right? She got into her favourite novel but it was the olden days era. Ah!the olden era and she was actually playing the role of a girl who was hated by someone she loves. You know, Jasmine's crush was the ML of the novel. And then she getting into the novel and playing the role of enemy is.... Again,she woke up and found herself in a hospital bed. And this time it was the actual novel. Isn't that a bliss? She was her playing her own damn role. Intriguing right? A secret!What's it? A change again occurred in the novel. The novel she read was a contemporary romance but this time it turned to Fantasy. The novel turned to a book that the ML and other characters were not humans but something else...... Something mysterious, something gruesome

To escape the clutches of the evil queen, Linux. Aether, the world's strongest sorcerer sacrifices himself to keep the Yggdrassil safe. His sacrifice yields him fruition as he reincarnates in a world full of Awakened individuals. He reincarnates as a orphan boy who is blessed by a unique entity. With the world's changing, Aether / Arthur has to challenge the winds of change while growing stronger to face the Queen again.