Villain's Breeding System: Evolving 999+ Harem into an SSS-Rank Legion - Chapter 15- Warden got a Promise

I, Ichinosuke, failed to get a job for 100 consecutive times. Furthermore, my record is still being updated as unemployed.

When the storm struck, they chose Kogan as a sacrifice to save their city... but he found himself in an unknown world, surrounded by strangers who knew nothing of their fate. In a land teeming with enigmatic entities and lurking dangers, Kogan will soon realize that his survival was no miracle, but the beginning of a harrowing trial. Will he find a way to escape, or is this place the grave that was destined for him all along?

After announcing it will be discontinuing all service, the internet game ‘Yggdrasil’ shut down… That was the plan, but for some reason, the player character did not log out some time after the server was closed. NPCs start to become sentient. A normal youth who loves gaming in the real world seemed to have been transported into an alternate world along with his guild, becoming the strongest mage with the appearance of a skeleton, Momonga. He leads his guild ‘Ainz Ooal Gown’ towards an unprecedented legendary fantasy adventure!

DING!![You killed a Level 3 Mutant Zombie for the first time!]-----DING!![You have crossed the limit of humanity! Entering the mutation stage!]-----DING!![Congratulations, user! You are now a being beyond human beings!]-----Being a good person cost him his life. When death sent him back, he vowed to take revenge and finish the job.Behind the icy cold that grips the world and the red light that fills the sky day and night, he must defy the zombie apocalypse.A safe house, unlimited food and drink, every conceivable weapon and a system to help him... But he has only two things on his mind: Survival and revenge.