MTL - Inside and Outside World - Chapter 30 : 4 worlds

Song Fengwan was dumped by her fiancé, who had been dating her for a year, and an illegitimate daughter appeared out of nowhere to ruin her family.

After picking up a phone on the streets, Feng Yuchen was sent to the world of High School of the Dead. He, along with 100 people, have to travel through various worlds, fight and solve quests in order to survive.

Whoever dies in that world, would be teleported back to the real world without memories of what happened before and die in an accident one year later.

- Description from Novelupdates

Tangyuan was an excellent pulmonologist who, after an accidental death, acquired a system.By completing tasks in various fast-travel worlds, she would fulfill virtue and acquire a new life.The system chosen for her was the farming stream system, which included time-traveling through ancient times, the Republican era, apocalypse, modern times, and more.This fulfilled her joy of earning from nothing and also allowed her to enjoy the study of various professions within the fast-travel system.

All it takes is one monster for the world to go to ruins.Life as Nadine knows it goes to shit and she has to accustom herself to life underground, that is until an accident forces her out into the real world.Caine has no idea why he saved Nadine.She is everything he hates- rich, spoiled and entitled- and yet, he couldn't just let her die.Living outside is hard enough without having to save someone else and yet, he does it with Nadine.Thrust into a world that she has no idea how to navigate, Nadine is forced to rely on Caine.Her life is literally in his hands.They soon realize that maybe the monsters are the least of their worries.