One Piece: Don't Worry, I'm a Doctor - Chapter 4 - : The Flustered Little Deer

After midnight, you’re not allowed to enter the bathroom.

At exactly 2 am, there was a knock on the door.

A woman with disheveled hair and a bony figure always had her back turned to me.

Encountering strange events? Luckily, I can rewind!

This is a story of a reborn individual who navigates a world invaded by strangeness, carefully taking

- Description from Novelupdates

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

Can't a man maintain his dignity while preparing for the end of the world? Is that too much to ask?

The Tower was all I knew... all any of us knew, and just like that, it was gone. Monsters the likes of which I'd never seen ravaged the land of my ancestors. They burst through the outer walls and stormed the city. No one could have been ready for that. But now... Now I have a second chance.

After the collapse of the known world, I woke up to find myself on the First Floor of the Tower. I was young and healthy, 18 again, and sitting in the same classroom that marked the worst days of my life. Confused and excited, I accepted this gift, deciding to use my vast knowledge of the future to climb the Tower in preparation for the end of the world.

Maybe I'll help some folks along the way? Who knows. Survival comes first.

The clock is ticking, and I'm left with only a century to build a Deck powerful enough to survive the end. Things to do... What's first? I need Essence, and I need power. I'll have to climb the Tower to acquire both of these. Some of the zealots will try to stop me, need to look out for those. What if-

“Hey, kid! Hand over the pouch or-”

Stab

Sorry, where was I? Ah... there's a spot of blood on my suit. What a lousy morning.

In this world of blood and fantasy, century-old Rowan Wilder has to not only survive, but thrive as he powers his way to the top of the Tower. The Demonic Plague that has twisted the creatures on the upper Floors is the least of his worries. Cane in hand and Summons by his side, he'll have to tear his way through the monsters, as well as the humans who want to stop his ascent. Of course, he can maintain a sense of decorum while he faces these trials, right?

Fate, a gatekeeper who had been working for the castle, is beset by a few burdens.