Chaelinh's activites

-Reincarnation, Transmigration 
-Reincarnated in Another World
-Reincarnated in a Game World
-Reincarnated in a Book World
-Reincarnated as the Villainess
-Reincarnated as a Side/Mob Character

-Reincarnated in The Past
-Reincarnated in The Future
-Time Travel, Time Rewind, Regression
-Transported to Another World
-Summoned to Another World 

-Female Protagonist 

PART 3:https://www.mangago.me/home/mangalist/682647/

PART 4:https://www.mangago.me/home/mangalist/1494844/

This is just a list of manhwa/manga which has main character/s who gained a second life in the modern world setup.

Main Characters: Reincarnated/Second Life
Settings: Modern Society

The list is in no particular order.
Feel free to suggest anything in the comment section.

OP MC (MALES ONLY) 
 Martial Arts
  Fantasy!
  Reincarnation!
   Second chances! 
 New Life!
  Manhua! 
 Manhwa! 
 Weak To Strong! 
(LITTLE TO NO HAREMS

"After meeting her death, Thalia is reborn as the female protagonist’s older sister, a ch...

A senior disciple from a countryside martial academy returns as the world’s best! Dragged into...

Check out the second part list 

part 2:https://www.mangago.me/home/mangalist/2562094/