I'm The King of Business & Technology in the Modern World - Chapter 14: Taking Shape

Witnessing her boyfriend cheating on her with her bestie, Shiyao was so angry that she went to a pub for fun and met a man, who was really a piece of work. After a crazy night she fled away, but was embarrassed to know that the man she slept with was her boss You Ze.
Jesus, give her a break!

- Description from Novelupdates

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

Ethan died of terminal illness and woke up in the body of a teenager named Luis Suarez, who was assassinated. To his surprise, he was in a parallel world and moreover in the world of a game that he used to play. Now he is stuck in a dangerous game like world. As a character who died, even before the start of the game story.

Now follow Luis on his journey to find out whether his involvement will change the fate of this game like world whose ending was doomed.