It’s Lonely To Be Invincible - Chapter 1122

Fate, a gatekeeper who had been working for the castle, is beset by a few burdens.

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

- Description from Novelupdates

Following a brutal and tortured death, a former assassin, known only by his codename Kuro, is given the opportunity to reincarnate in another world, a world with magic and monsters. Armed with an unrivaled healing factor and an inhumane pain threshold, Kuro opts to go for a reckless direct approach in this world instead of a stealthy and cautious one, and as a result, slowly gains attention bit by bit.

Having previously been a loner in his old life, he interacts and befriends people for the first time in his existence, however, his blunt nature also sees him making just as many enemies, both big and small. By combining his old assassin skills with the magic powers of this world, along with his high resistance to pain and rapid regeneration, he doesn't take long to establish himself as a formidable force in this world.

Initially, Kuro only faces minor threats, like weaker monsters and bandits. But before too long, the threats slowly but surely become more and more severe…from Zombies to a bloodthirsty empire to Vampires and Demons, and even divine beings…however, as the enemies he faces grow stronger, so does Kuro, gaining rare powers that have never or rarely ever been seen in this world…

Raymond wakes up in an unfamiliar world, inhabiting the body of a 15-year-old boy who shares his name. In this realm, one's profession defines their destiny, but the boy Raymond now embodies had recently failed to awaken any profession, facing a future of obscurity and ridicule. Confused yet determined, Raymond discovers a mysterious system panel exclusive to him. This system grants him the ability to awaken multiple professions, each unlocking unique powers and skills. However, to access these professions, he must complete specific awakening requirements, setting him on a path filled with challenges and quests.Embarking on his journey as an adventurer, Raymond traverses vast landscapes, from enchanted forests to ancient ruins. Along the way, he confronts formidable foes, solves arcane mysteries, and forms bonds with a diverse cast of characters—fellow adventurers, mystical beings, and even former rivals. Each trial not only enhances his abilities but also unravels secrets about the world's hidden truths and the origin of his unique system.Through trials and tribulations, Raymond transforms from a boy deemed a failure into a legendary figure whose actions could reshape the fate of the world. His journey is a testament to resilience, the pursuit of self-discovery, and the profound impact of the connections made along the way.