Ichiban Ushiro no Daimaou - Volume 6, Prologue

As a renowned fierce god in the infinite flow world, Ye Jia deliberately hid his strength after clearing it and found an idle job in the Logistics Department of the Paranormal Investigation and Management Bureau. He originally thought that he would be able to return to his salted fish life and live comfortably. But what Ye Jia didn’t expect was…… One day, he opened the fridge and was met with an evil spirit’s vicious head, “Boss, boss. Did you miss me…..” Ye Jia: “………” He slammed the door shut and fell into deep thought. Wasn’t there something wrong with this world? The TV behind him was broadcasting news: Recently there has been a surge in paranormal events and the number of missing persons has sharply increased. It is currently under investigation….. * With the infinite flow escape game unexpectedly crashing, countless demons and ghosts trapped in it were released, bringing disaster to the world. Only Ye Jia who cleared the game knew the truth. All of these……..were old acquaintances……… Ye Jia: My life is too difficult. #I clearly just want to be an ordinary corporate s*ave# Finally, one day, he saw an unexpected monster. After two seconds of silence, Ye Jia greeted dryly: “…….You came out too. What a coincidence.” The man before him smiled and slowly approached him, “My boyfriend ran away from home. Of course, I should come out to catch him and bring him back.” Ye Jia: “……..” Who would have thought that, along with the global sensation of ghost doors opening in the mortal world, there was also….. His peach blossom debt. It can’t be, sir. This is also okay?

Eldraus was once a normal world , peaceful, beautiful and full of life, much like Earth.But everything changed when the Beast Mutation began.Animals started turning into terrifying monsters larger, stronger, and unnaturally violent. Kingdoms fell. Cities burned. Humanity was pushed to the edge of extinction.Then came the System, a mysterious power that awakened within humans, granting them abilities to fight back. Over time, the system became a part of everyday life. Every person now awakens with a System, ranked from the weakest gray to the legendary black and above.This is a world where strength rules, and the weak are left behind.Kaelen Maglor, son of a noble, awakens with a rare black support system. People mock him, expecting him to be a healer. But Kaelen has no intention of following their path. He chooses to walk his own.With danger rising and powerful enemies lurking, Kaelen enters a deadly academy that trains the next generation of fighters. There, he will uncover secrets, face deadly trials, and learn that the system that grants power... might also be hiding a terrifying truth.In a world where monsters roam and only the strong survive, Kaelen must prove that even support can become unstoppable.

Of the ancient gods only one remained in the world. This god lived alone for thousands of years and no longer had any desires. Legend had it that during the great war between the worlds he used his powers to turn the tide managing to seal the cataclysmic rift bringing order back into the three realms. Time flew by and hundreds of years passed in the blink of an eye.

In this time Shen Li was born into the demon world. Known as the Azure Sky King she was used to living a bright and dazzling life full of successes. Little did she know that her 1000th birthday would bring misfortune to her doorstep – a politically arranged marriage with her name on it. The Azure Sky King would henceforth marry the thirty-third grandson of the Heavenly Emperor, Fu Rongjun. This arranged marriage was meant to unite the Heavenly realm with the Demonic Realm, bringing the two together. Most would consider it good fortune to be related to the Emperor.

Unfortunately Fu Rongjun was infamous throughout the two realms for his Casanova personality. As the King who called the shots in the Demonic Realm, she had the ability to quell uprisings and end wars with a swing of her silver spear – there was absolutely no way she would marry such a flirtatious idiot. She had to escape from this marriage somehow even if it meant death!

In her escape Shen Li, never expected to meet a man that didn’t belong to any of the three realms. This oddball was truly strange!

- Description from Novelupdates

In a post-apocalyptic fantasy world layered into multiple realms, humanity faces extinction due to their endangerment of the main realm. Forced to merge all realms back into one, a deity grants humans a leveling system to empower them, lest they become extinct when facing the mythical creatures. Noah, our protagonist, embraces the role of a monster tamer, trading his humanity for strength and eventually transforming into a monster himself. As Noah struggles with his evolving identity, he must navigate a world where the line between human and monster becomes increasingly blurred.