The New Gate (LN) - Vol 10 Chapter 4.2: Chapter 4 Part 2

Violet skies, a world undergoing massive changes, a deficient moon, interlinking voids…
When the world experienced a cataclysmic event,the majority of living things ceased to exist. Although humanity survived by hiding in the last safe zones, humans had to face mutated dire beasts and colossal source beasts that could break through the space barrier and enter the earth at any second.
Luo Yunyang, a young man who grew up in those calamitous times, obtained an attribute regulator and set out to walk the path of supremacy!

- Description from novelupdates

Long Fei, a cross-timer and doujin, is an otaku who traveled to another world. In the original world, he was an otaku fan of Gundam and military science fiction.

He died in an accident and was reincarnated into another world. The Gundam works he had read before his death and the techniques in various military novels could be brought to another world.

How would he use the Gundam that Long Fei created? What waves can be caused in this different world?

[The Demon King is Dead], a story in which the Demon King got immediately killed in the Prologue. I became the ‘Demon Prince’ of said novel.

…Help me.

Cross is a laborer and helper working in multiple construction sites and stores to pay his bills and food. The pay isn’t much, but he is content with his life. He has a job, a crappy rented apartment, and a girlfriend.

But it all shatters when the world changes one day. A strange phenomenon teleports everyone into a world of fantasy, magic, dangerous beasts, and mystifying creatures.

Everyone is given abilities, skills, and spells and can level up like in a game.

And that’s not all. They are transported in a medieval timeline where technology is nonexistent, and living is harsher than one might expect!

When Cross swipes his hand, a screen appears, and the first thing he read.

‖ E V I L S Y S T E M

S I D E Q U E S T ‖

* Insult Someone

Reward:

+100 EXP

* Spank a girl’s butt

Reward:

+1,000 EXP

‖ E N D ‖

‖ E V I L S Y S T E M

M A I N Q U E S T ‖

* Brake up with your girlfriend

Rewards:

+10,000 EXP

Egg (?)