MTL - Mystery Makes Me Strong - Chapter 13 Having children is difficult to teach

In regards to the MMORPG Cross Reverie, Sakamoto Takuma boasted an overwhelming strength that was enough for him to be called the Demon King by the other players. One day, he gets summoned to another world with his appearance in the game. There, there are two people that insist “I am the real summon master.” Takuma gets slave-turning magic used for summoned beasts cast on him by the girls –

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.

The day a mysterious darkness enshrouded the world. It was theorized that the earth’s magnetic field had been changed, the data that corresponded to it also changed. The previous academic knowledge had been overturned, and numerous things had to be re-explored.

The science that humanity was familiar with had been disrupted, including the genes of human beings. One of the largest disasters brought by the change was that 80% of humanity transformed into zombies. After years of struggling, a few lucky survivors would evolve and awaken a power inside themselves. Chu Han was never that lucky.

While holding on against the first wave, humans weren’t the only ones getting stronger. Soon, stage 1 zombies evolved into stage 2 then 3 and so on. 10 years after the mysterious meltdown, the world of man belonged to the zombies. Humanity was nearing the of the end of the eschatology.

One day, Chu Han consciousness came back ten years before the end of the world came. He was awakened by a loud noise in a dormitory in Minqiu University. With only 1 day to prepare before the meltdown begins, he slowly begins to realised that he had undergone a rebirth. A power was awaking inside of him now despite never appearing in the hellish future. It calls itself the meltdown system.

Despite losing the monstrous strength gained through years of harsh training, this system claims to trade kills for talents. This is a story of a collapsing world, a meltdown system, and Chu Han being on stage as he travels to save those he could not save before.

- Description from Novelupdates

My name is Zhang Yanhang, just an ordinary Awakener and a part-time college student living a monotonous life, following the routine of school, cultivation, and home. I neither smoke nor drink; my only hobby is observing humanity during moments when time stands still.I thought my dull life would continue forever, but one night, as I lay in bed ready to sleep, I unexpectedly stumbled upon something interesting.【Enter the Ashen World?】【Option One: Yes (Successfully enter the Ashen World and gain the ability to digitize your body as well as ways to become stronger, the price might be oversleeping and being late for school tomorrow.)】【Option Two: No (Refuse to enter the Ashen World but feel it's a waste to sleep immediately, so decide to stay up all night gaming and cultivating, the price might be oversleeping and being late for school tomorrow.)】【Option Three: Ignore for Now (Suggested for those with difficulty making decisions, you will agonize over whether to enter the Ashen World and will only fall asleep at two in the morning, the price might be oversleeping and being late for school tomorrow.)】ps: The protagonist is not saintly, is decisive and ruthless, and thinks differently from the average person. Please refrain from criticism if this is not to your taste.