Kill to evolve: A system that demands blood - Chapter 14: System Upgrade

Chang An is a sub-beast who, despite having the talent for the sword, did not have the constitution to support it. And his savior, Hua Yi, is a beastman on the run for his life.

This is a story about how two once innocent children had to grow up in such a cruel beastman world.

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“There is no god, only the echo of our fears, bound together in a symphony of false hope, woven to make this endless cycle of pain bearable... But I refuse to be just another note in their song. I will not be silenced to protect the gate you so desperately uphold. I don’t care for the blind masses; they are but shadows, moving without purpose. If I cannot run, I will walk. If I cannot walk, I will crawl. If I cannot crawl, I will roll. And if all that remains of me is a severed head, then I will still glare at you with the scorn of the relentless.”...In a world where Hunters fight to keep humanity safe from monstrous invasions, Timothy Walter is nothing more than an E-rank weakling, expendable, powerless, and barely surviving.That changes when a forgotten dungeon forces him into a deadly trial, awakening ancient rulers from across races.Bound to the weakest among them, he inherits a power unlike any other: “King Player.”Now, with a system that defies all logic, Timothy must carve his path, facing enemies both human and monstrous, as he ascends from the lowest depths to claim a throne none believed he could reach.

Transmigrated to the world of Demon Slayer, only to become a swordsmith?“Then I'll forge the strongest Nichirin Blade!”With each hammer strike against the iron ingot, a notification appeared...[Impurities -1]After a hundred refinements, another notification...[Constitution +1]Upon completing the weapon, a final notification...[Current Weapon Sharpness Level: 1][Forgemaster: Strength +10, Constitution +10, Agility +10, Speed +10][Reward: Sun Breathing Technique!]“Maybe... I should become the strongest swordsman after all?”

Ryo Tanaka, a struggling college student, works tirelessly at multiple part-time jobs to make ends meet. In a bid to earn some extra cash, he volunteers for a paid drug research study, unaware that it will alter the course of his life forever.The experiment takes a disastrous turn, leaving Ryo bedridden with a high fever for several days. But when he finally awakens, he finds himself in a world plunged into chaos. A deadly virus has ravaged the city, turning its inhabitants into ravenous, flesh-eating zombies. Streets once bustling with life now lay desolate, the remnants of civilization crumbling under the weight of the apocalypse.