I can rewind time to prevent death - Chapter 736 - 430 Perfect Transition (6000 words ask for

A man from a 3rd World Country finds himself transmigrated in another world in another time.First Reaction?“Hey what the actual f**k?”Next Reaction?“Oh my gosh! Am I really overpowered?”Author's Warning!The MC will become OP after a few chapters, not instantaneously!___________________________________Uh, so this is my first time writing a novel. Hope my creation can bring a smile to your faces.Btw, English isn't my mother tongue, so.... don't hesitate to point out any errors in my book.

Gacha – Civilization’s Ultimate Game.

Spin now for a shot at fortune.

Spending that doesn’t disrupt your lifestyle? That’s virtually free-to-play.

Keep spinning until you strike gold – success is guaranteed.

…

…

Today, yet again, I’m at the gacha wheel.

“Did I get a 5-star?!”

The well-known and recognized throughout the Stern continent, strong and mighty, as well as the unique Wizard of magic cures, the most outstanding genius of the whole continent, Jason got into the flow of time, back in the uncivilized era during the first failed experiment, 3000 years ago. This was the period when the magic healers didn’t exist. How will Jason apply his knowledge in this backward era, wherever he reach the peak of glory?

- Description from Novelupdates

All I ever wanted was for famous detectives like Sherlock Holmes or Arsène Lupin to appear in my dreams and share their wisdom. But instead, why am I hearing the voices of notorious serial killers in my head, guiding me to solve a string of mysterious cases?