MTL - Unlimited Machine War - Chapter 2750 Where is this especially used

It’s the beginning of the Apocalypse, and zombies are running rampant over the Earth.

With the Legendary Mechanic System, I transmigrated to Marvel Universe to be Dr. Zola’s assistant.

With Mechanical Force Analysis, I can learn every black technology.

Winter Soldier’s arm? I built a better one for you.

Iron Man’s armor? I already made it a decade earlier.

Doc Ock’s tentacles? I am the one who provided core technology.

Hulk’s mutation? Sorry, I was there and got hit by the radiation too.

As for a certain purple potato, can he collect all Infinity Stones?

……

However, I only had one simple ultimate dream. That is to go home…

- Description from Novelupdates

Weird World revival, strange stories unfold. The “Unspeakable” has come to the real world, and those chosen will enter the weird world to represent their respective countries and challenge the Unspeakable.Now, Gu Yi has been selected by the weird world to represent the Dragon Country and challenge the first dungeon world, the Chongshan Hospital, where the death rate is 99%.[Patient Handbook]1. Take medicine on time three times a day.2. Please keep the ward clean at all times.3. People wearing bird beak masks are doctors or nurses, please follow their advice carefully.4. If you see blood dripping from the ceiling in the hallway, do not panic, as this is normal.5. If you notice any equipment damage, please contact someone wearing an elephant mask for repairs immediately.6. There are always two people in the ICU, please keep this in mind.On the back of the page was written in blood: “Do not take any medication given to you. They are a group of demons who will lead you into the abyss.”

Arthur, a Rich businessman was kidnapped and tortured for months by men his wife hired. After months of this hell, he was given a second chance, a new life in a different world and, of course, Arthur would rather start a new life than stay and continue to be tortured, so he accepted the deal that was proposed by a mysterious individual, but when he finally was reincarnated, Arthur discovered he was a..... parasite?