MTL - The Roots of Manga - Chapter 13 Assassin

The Third Dimension is collapsing. The Fourth Dimension is descending.

First it seemed that only technology would evolve, but who knew the world itself could too? It wasn’t as simple as climate change or tectonic movement. No, the fundamental laws of physics that governed everything were changing.

Leonel was fairly lucky. His family was decently well off, his father loved him enough to brew vomit inducing nutrient rich smoothies every morning, and this was both the day of the National Championship and his 521st confession to his dream girl, Aina. As his father always said, nothing was more important than respect and persistence.

Unfortunately, everything changed that night. At the after party of ages, the world reached a saturation point and an apocalypse descended.

Abilities awakened. Sub-Dimensional Zones opened. Invalids rampaged through the Earth like a virus…

Those who could evolve would have a slim chance for survival. Those who couldn’t would die.

This novel will be a unique spin on the dungeon/system genre. Dungeons won’t be dungeons and the system won’t be a system… Take a look to find out what I maen :)

Several hundred thousand players are trapped in a gritty zombie apocalypse survival game just after game launch. There are hints that deaths in the game might be serving some other terrible purpose in the background of reality…

The main character, Liu Gan, is a quadruple amputee in real life. A quirk in the server code recognized his prosthetic limbs as ‘real limbs’ in game, giving him ‘normal’ arms and legs that nonetheless have the strength and power of steel limbs, and thus far more power than a normal player. With this minor cheat helping him survive the early stages of the game, Liu Gan sets out to find out what exactly is going on, and to endure as long as he can.

- Description from Novelupdates

A man reincarnates in the body of a boy who suffered a tragedy, only to realize that he is in the world of My Hero Academia. What's even stranger is that his quirk seems to have the abilities of Nen and Haki.