Rakuin no Monshou - Volume 12, Chapter 3: Dairan in Flames

Rotten! Rotten! Rotten!
Yin Li was fired by the company and dumped by her boyfriend. When she woke up, she found that she had traveled to the orc world. He thought that with the brains of modern urbanites, he could make a fortune, but he found that courtship alone was enough to stumped him.
The blond lion orc likes bamboo horses, and the black-haired and yellow-skinned black bear orc has long been engaged… Looking left and right, only the hyena orc who looks exactly like his ex-boyfriend sends a “signal” of love to him.
However, it is rare to come to another world, but also to eat grass? Yin Li said: “Ugly refused!”

- Description from novelbuddy

Ryan «Quicksave» Romano is an eccentric adventurer with a strange power: he can create a save-point in time and redo his life whenever he dies. Arriving in New Rome, the glitzy capital of sin of a rebuilding Europe, he finds the city torn between mega-corporations, sponsored heroes, superpowered criminals, and true monsters. It’s a time of chaos, where potions can grant the power to rule the world and dangers lurk everywhere.

Wan Tong was bound by the “Corpse Collecting System” and travelled through various small worlds. Her mission is to use the big boss’ white moonlight’s body to resurrect and stop raiders from looting the big boss’ luck.

Wan Tong : Didn’t you say that the big boss has no emotional line?

System : Who brought the white moonlight back to life →_→

Wan Tong : …. sob, sob, every day I try my best to help the boss deal with the raiders, but the boss is thinking about how to attack her!

PS :
(1) The male lead is the same person, the white moonlight is the original MC, which is mentioned later.
(2) Every world is probably sweet love

T/N : white moonlight = first love

- Description from Novelupdates

The protagonist of the collapse of the three former civilizations is Dr. Mei. What is the end of logic, the strongest brain, super intelligence, this is the story of the strongest scientist of Honkai with knowledge of the moon becoming the god of science!

- Description from novelbuddy