Spirit Master Girl: Contracting with an SSS-Level School Beauty at the Start - Chapter 450 Federation Library

[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.

She is a top-class spy, a poison specialist, but also a young and cute girl with a sinister temperament. In spite of her sweet and innocent appearance, she can complete any tasks without the slightest hesitation. One day because of an incomplete black magic, she was sent into the body of a girl who was deemed as a good-for-nothing. What kind of change will she bring to this continent?

A Prince said with bitter hatred, “I thought she was weak and easily bullied, therefore I broke off the engagement. I really didn’t expect she is such a shrewd girl. I made an error of judgment.”

The Crown Prince deeply sighed, “She is such a sexy evildoer! Obviously, she has a frail and tender body, but I am not able to overwhelm her…”

Finally, an Emperor hit the nail on the head, “She is just a bit two-faced!”

She answered, “You’re just a big pervert!”

The Emperor carried her into the room and said, “You are predestined to be mine! A two-faced girl and a pervert are a perfect match, right?!”

- Description from Novelupdates

“If she feels pain, then I'll make sure we all do...”As a purple and pink tailed meteor enters Earth's atmosphere, it begins “snowing” all over the planet.Humans are no longer on top of the ladder. A crystal ice dragon explodes from the space rock, creating Hell.Bringing along an ambush of bloodthirsty aliens, some large enough to demolish buildings, “Leviathan” has forced humanity into various locations of hiding around the world.Within three years after the initial invasion, humans have begun to not only fight back against the aliens, but some choose to become symbiotic hosts, acquiring “magical” abilities after slaying one of the unconventional extraterrestrials.Shortly before leaving their sanctuary/apocalypse training academy, two once drifted friends, Katsu and Saku, are reunited on the same scout team. As polar opposite personalities they are chosen by the only surviving “Creator of Humanity”.Both boys become 'blessed' to be hosts for their universe's contemporary forces and use those “God given abilities” to achieve their (secretly combative) goals.Accompanying them is Katsu's adopted sister, Shelly. Regarded as “The Beast of the Beasts” by her peers, she is the reincarnate of her grandmother. The greatest, most underrated female Scandinavian sword fighter to live before the 13th century.After learning of her destined lineage, and admiring the otherwise “mythical” accomplishments completed by her top tier, ass kicking Valkyrie grandma, Shelly is determined to retrieve all of the stolen blades from those who dishonorably stole them over 800 years ago.In order to do so she will have to defeat several members of a manipulative covenant of warrior witches. Each woman blessed with an undiscovered form of energy that has unknowingly coexisted with humanity. These 7 women usher in the POST-post-apocalyptic world as Mafia Bosses, Matriarch Socialist Dictators, Seafaring Conquerors, and a few just want to see this new snow covered world burn.To prove which unnaturally born creature is the Supreme Ultimate amongst them.Aliens, action, romance, betrayal of old friends, the gaining of trust from new, overpowered goofballs, magical damsel despots, righteous and nefarious humans gaining niche powers, not to mention a secretive psychopath using his God given abilities to preserve who he views as his sole purpose.In the end, will love truly conquer all, or will 'their' love conquer us all?“If you have a beloved purpose you can't live a day without, do you truly have any freedom to live?If you have complete freedom to act however, or say whatever you desire, do you truly have any purpose worth caring about to protect?”~~~~~ ~~~~~ ~~~~~ ~~~~~ ~~~~~ ~~~~~ ~~~~~[All character and cover art is not done by AI but by my good friend Amon-kun]~~~~~ ~~~~~ ~~~~~ ~~~~~ ~~~~~ ~~~~~ ~~~~~WARNING/DISCLAIMER: This series uses ætiological mythopoeism to spotlight coincidental parallels between various religious scriptures, and scientific theories but is in no way discrediting or belittling the beliefs of others whether that be Creationist or Evolutionist.The views, ideas, and conversations between characters aren't in any way meant to change anyone's beliefs.The conscious use of certain psychological elements from theistic ideology and out of context holy verses is only to support this fictional plot and it's characters. As well as aid the reader as to how one could theoreticize or philosophicize the plot. Instead of using various conflicting ideologies to shame or undermine those who believe, the intention is for deeper thinking and uniting those who believe peace and tranquility between humanity is most important above all.

This is the story of a person who transmigrated into a world with a radically different worldview.