MTL - The First Strong - Chapter 2545 Siege

What got summoned was the world’s strongest sociopath.

[WSA 2025 Entry]Ivan Mendoza, a world-renowned robotics engineer, met his end at the hands of those who feared his genius. But death was not the end. Awakening in the body of Kael Valtieri, heir to a destitute border territory in the magical kingdom of Ardania, Ivan finds a second chance in an unfamiliar world driven by arcane forces.In this realm, magic reigns supreme, yet it is woefully inefficient and bound by antiquated traditions. Armed with the knowledge of advanced robotics and engineering from his past life, Kael sets out to merge science with sorcery, aiming to revolutionize the very fabric of magic. His quest? To uplift his impoverished territory and safeguard it against the lurking dangers beyond the border.But Kael’s journey takes a thrilling turn when he stumbles upon the remnants of an ancient, forgotten civilization. Hidden within their ruins lies golem technology—astonishing constructs far superior to anything Earth’s science could fathom. Driven by curiosity and ambition, Kael deciphers their secrets, melding ancient ingenuity with his modern intellect to forge unprecedented defenses.As Kael uncovers the dark history of this world, he learns of rifts that once unleashed monstrous beings from other dimensions, nearly annihilating humanity. Though a powerful artifact sealed these rifts, its strength is waning, and an impending cataclysm looms.Now, with time running out and the continent teetering on the brink of another monstrous invasion, Kael must wield his hybrid mastery of science and magic to confront the rising tide of darkness. Can one man, armed with the knowledge of two worlds, avert a catastrophe and carve out a new destiny?Prepare for an epic tale of innovation, mystery, and survival in a world where the past and future collide.

Humans across the world ended up joining a “Demon Kings and Heroes game”.

Several billion people were set down upon another world to act as “Demon Kings” and “Heroes”. Everyone has to chose their starting races from the start.

Zhang Nu was set in the Demon King camp.

He discovered that he could see hidden information that no one else could.
[Slime Demon King]. Low grade demon king bloodline… Not recommended!
[Kobold Demon King]. Low grade demon king bloodline… Not recommended!
[Dark Elf Demon King]. Mid grade demon king bloodline… Can be selected!
[Bloody Giant Demon King]. High grade demon king bloodline… Recommended!
[Abyssal Dragon Demon King]. Strongest starting bloodline… Extremely recommended!

[You have signed in!][Lucky spin in effect!][You have obtained (Immortal Body)!]---Rion was a teenage boy who, unfortunately, had never seen the world beyond his own.Born with a weak body and a mind too great for it, never allowed a single moment of peace; he always dreamt of the outside world, of the great nature.His doctor had told him that he would be going out soon... but he didn't think he meant he would be outside like this.Rion had died that day, only to be reincarnated in a tribe of Warriors. But this time his life would be different as he was accompanied by his cheats. Rion had decided to live a simple life—[Ding!][You have signed in at The Spring of Youth!][You have obtained the passive skill (Minor Heal)!][Ding!][Lucky Spin is in effect!][Congratulations! You have obtained 100x reward!][You have obtained the passive skill (Immortal Body)!]—Until he obtained Immortality.He had never cared about the rewards he obtained from his sign-in system and lucky spin; he was happy with anything—everything, but... Now he could travel the world without fearing what he feared the most—death. He had gained Immortality, after all.____Stakes would be low. Mostly Slice of Life with tidbits of action and drama.