The Real Rich Daughter is a Future Genius Scientist - Chapter 400 - : High Technology

Lyle Walt is a young noble boy and heir looking forward to the day he can inherit his family’s territory. Except around when he was 10 year old, his parents started neglecting him more and more in favour of his little sister, Celes.
On his fifteenth birthday, he is challenged to a duel by his sister to see who will inherit the household and horribly loses, being cast out of his family. Afterwards, he gets treated by the family groundskeepers and receives the family heirloom Gem from him that Lyle’s grandfather had entrusted to him. From there, he begins an aimless journey with his childhood friend and former fiancée, Novem, and the Gem-turned-Jewel that houses the memories, personalities, and Skills of seven of his ancestors.

The end of all worlds approaches.

The Demon King Order harvests lives from all manners of living beings.

Within this darkness full of despair,
A single person escaped from space-time, returned to before the world collapsed, determined to change the fate of the past.

But as time pass, he gradually finds out that the Apocalypse isn’t quite as simple as he thinks…

- Description from novelupdates

Jang Joonbum started stream to enjoy an easy life.

“Want to know the meaning of life? Want to live… a real life?” The world changes when you click YES. In God’s dimension, you have to keep getting stronger, keep evolving to survive one horror movie after another. Do you kill everyone in your way to reach the end as a lone king? Or fight along with your comrades and survive through the support of friends? Everything was just for staying alive. Until you find the secret of God’s dimension. Who is the real enemy?