Becoming evil makes you ten times stronger, but becoming a demon gives you hundredfold strength - Chapter 262 - 238: 300 Golden Cores

Humbra bleeds, devastated by an unrelenting race for survival against the Leirions—powerful monsters intoxicated by their bloodlust. Amidst this chaos, a young orphan, haunted by his brutal past, discovers he is the catalyst to a greater future—a future far darker than he could ever imagine.This is Leonard, a boy whose destiny entwines with ancient secrets, betrayals beyond reckoning, and a world-shattering rage.Humanity already struggles on the edge of the abyss. The light of hope has long been extinguished, ushering in the darkness and heralding echoes of lament... But from this despair, a new hope flickers: the Neumonds, wielders of powers that transcend life and death. Are they saviors... or harbingers of a final, devastating curse?Will Leonard save them all... or will his desire for vengeance end in a valiant death?

C-class mercenary. Started as a No Class, possessing nothing.

13 years of survival in the depths of the ditches.

I’ve managed to return to the beginning, but…

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

[ABO/ Omegaverse - Mature Content]Once a single nation, now the Kingdoms of the Zui wolves and Xin foxes have been enemies for ages, with the humans from Su just trying to survive the fallout.Chu Yun is a pampered nine-tailed fox who lives a life of leisure and contentment, until one day his uncle, the king of Xin, calls him over to announce that a marriage agreement has been signed between Zui and Xin.Xiao Zai might be a prince, but despite his noble birth his position is anything but stable. He and his omega father have struggled to survive the royal harem's cruel games and the king's displeasure.One day, the king informs him that he'll be marrying Chu Yun as part of the treaty between Zui and Xin.It would have been an ideal situation, if it weren't for the fact that both Chu Yun and Xiao Zai were alphas.---Chu Yun: we're in this mess now, let's try to make the best of itXiao Zai: ok, how?Chu Yun: ....Xiao Zai: if you come any closer I'll rip your throat outChu Yun: okay, let's see who has the bigger....teeth.---Spoiled, cunning proud alpha fox MC x smart, determined, belligerent alpha wolf ML