Shinrei Tantei Yakumo - Volume 5 Chapter 3

He holds a god-level sign-in system in his hand, punches the goose factory, and steps on the pig factory. Do you think there is no good game?
First feed you two mouthfuls of tainted milk powder, and then send you the legend of the dragon and the Hearthstone gold cartoon for free.
What? Still not satisfied? League of Kings out-of-print skin, give away!
Satisfied? Tch, this is just the beginning…

- Description from novelbuddy

While the demons were rising, mankind was about to become extinct. Six temples rose and protected the last territory of mankind.

In an alternate timeline of Warhammer 30k, the Emperor of Mankind discovers the Independence Cluster, a group of technologically advanced worlds that have preserved Dark Age of Technology knowledge. Here, He encounters His first found Primarch, Franklin Valorian, known as the Symbol of Liberty.The charismatic and humorous Valorian, standing 15 feet tall, meets the Emperor with a mix of curiosity and irreverence. Unlike others, Valorian sees the Emperor as a powerful but regular man with a greater purpose, akin to a superhero.

After Xia Feng transmigrated, his heart was mysteriously removed.In its place, a defective demon heart capable of sustaining life only for eighteen years was implanted.This is a magical heart that can sync with the power level of its target.To stay alive, he bound himself to the ultimate villain of the future, a Destructive Witch who was destined to destroy the world.The stronger the Destructive Witch becomes, the stronger he becomes!Thus, Xia Feng realized, it's not my fault for stirring up trouble: “Miss Witch, I admit you're strong, but not strong enough!”