DxD: Scion of Lucifuge - Chapter 31: Invitation From Rias?

Earth has once again descended into chaos with the rise of the Exiles—mysterious and powerful monsters intent on dominating humanity. In response, the defenders—the army—deploy modern weapons and the dwindling resources at their disposal, but soon find these measures ineffective as the Exiles begin to evolve.In this desperate situation, a group of innovative scientists develops a groundbreaking serum that grants extraordinary abilities to those who take it, resulting in the emergence of Beholders—meta-humans, ability bearers, and superhumans. It is about time for humanity to evolve alongside its adversaries.Sky, like his colleagues, receives the serum. However, instead of the expected powers, he acquires something far more stronger —a trait linked to disaster. Additionally, he must deal with its numerous side effects, which are rather extraordinary.

One day he suddenly found himself in hell.
All he had was the desire to live and a predation ability.
From the first to the ninth thousand circles of hell, he absorbed dozens, hundreds of thousands of demons.
Even the seven great dukes of hell bowed down before him.

– Why would you wish to go back? Doesn’t his highness have everything that’s in Hell?
– What do I have?

Nothing to eat, nothing to enjoy!
The only things in Hell are the barren lands and terrible demons!

“I’m going back.”

After ten thousand years he returns to Earth.

An alternate realm invaded and the game descended. The entire Blue Planet was digitized.

Faced against countless waves of monsters, some people downloaded the Holy Knight module and became angels of light that helped the world reach enlightenment.

Some people downloaded the Warrior Monk module. They focused on their training and reached enlightenment overnight. With their fists and legs, they fought and made a name for themselves.

Chen Kun, who transmigrated to this world, downloaded the Boss module.

Each time he leveled up, his growth attribute improved multiple fold, and his attribute points multiplied. More importantly, all his skills were automatically unlocked as boss skills!

When the hole between the two realms opened and the gods of the alternate world came pouring in to invade this world, what awaited them was Chen Kun, who sat high up on a throne.

When the gods of the alternate world saw his terrifyingly long health bar as well as his boss skills that granted instant death and control immunity, reduced damage, true vision and many more skills, they despaired.

Chen Kun smiled and said, “So, are you the ones who will challenge my throne?”

Yun Muxi was a young scriptwriter in the 21st century who once time-traveled back into the olden days of China.

There, she met and fell in love with the Emperor, Duanmu Gongyu. After a torturous heartbreak, the duo separated and never saw each other again.

When Yun Muxi returned to the modern world, she ended up working with a rising actor, Gong Yu, who happened to be the same man she once loved with her whole heart. As soon as he set his eyes on her, the feelings of yesterday came back and he was determined to make her his again.

As Gong Yu tried to woo Yun Muxi repeatedly, she realized that she found it hard to resist his charms. However, the duo was trapped in a series of events that made falling in love impossible.

The modern-day Yun Muxi now has a daughter while the father of the child remained unknown. Gong Yu, on the other hand, had developed a history of heart attack.

On top of that, their story unraveled with shocking truths at every turn. The star-crossed lovers were faced with steep challenges that constituted the endless list and many sacrifices had to be made.

Would they eventually be given the chance to love freely?

- Description from Novelupdates