This is really not mechanical ascension - Chapter 39 -- 39 Testing the Waters, Upgrading Blast Shield, Core Ability--Thunderclap!

{One Piece, navy, check-in, physical skills, great swordsman, cool!}

People in Pirates get a nine-to-five check-in system.

From joining the navy and clocking in to work, I became stronger.

You said that if you beat her, you can get 100,000 overtime pay?

Sorry I was able to hit you broke!

You say I pity the fragrance and cherish the jade?

I’m sorry, but you just don’t have the qualifications to grab the second wool!

You want to test my strength?

I don’t work overtime without half a million!

As a qualified naval animal, working from 9 to 5 on weekends is the last word!

terribly sorry,

terribly sorry,

- Description from novelbuddy

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

The schizophrenic and bullied middle schooler Lee Jin-woo is about to start high school, but just when he thought his biggest worry would be finding a way to avoid drawing attention to himself, a virus outbreak occurred on the second day, plunging his school into a nightmarish hell, a setting straight out of a zombie thriller movie.However, while he was trapped in this come-to-life zombie horror-flick, not only does he have to think of a way to survive, but he also has to grapple with the fact that this virus outbreak might have been caused by his careless mistake from earlier in the morning.....A rewrite of 'Apocalypse: Apparently, I Can See Zombies'#Story based in South Korea#Story based on South Korean zombie thrillers#Story best read at night#Story best read in bed#Story has plot twists#Story has irredeemable villains# Enjoy the story :)