DxD: System of the Harem King - Chapter 155: The Sakuramiya Sisters

What was originally an ordinary day, suddenly became a historical turning point. Enormous, mysterious Cubes appeared all over the world without warning and as if Judgement Day’s spears, inserted themselves into the blue planet.

From inside the enormous Cubes, endless streams of monsters gushed out alike raging tides, utterly defeating the unguarded armies of each state in the blink of an eye.

In order for humanity to preserve its final embers, the heads of states issued orders of retreat, to no longer attack the Cubes but rather to cling to remote cities, which they turned into self-sufficient survivor bases and around which they built 100-meter-tall Walls of Life!

Many years later, while bearing the heavy weight of history, the first expeditionary force brought back a world changing piece of information. The Cubes possessed exceedingly high intelligence and they regularly transmitted mission instructions to humans nearby. The mission rewards were incredible.

Since then, humans rushed out of the confines of the walls and once more set foot on the wasteland!

- Description from Novelupdates

Mo Suqing woke up one morning to find a stranger on the bed beside her and decided to accept the handsome guy’s offer of marriage on the spot. What seemed to be a rash decision to get over with her ex turned out to be the love of her life. However, dark secrets began to come to light one by one as she learned more about the man. Will they be able to get through all the obstacles presented in their way? Meanwhile, the other characters were also writing their own love stories…

[ Vol.3 ] Lucius “Lucien” Cronus—a titan of time, innovation, and power—stands at the peak of a world he reshaped with genius time-fueled ambition. Yet every triumph is hollow, every bond an echo—because none can replace those he’s truly lost. When faint disturbances ripple through time, Lucien’s obsession reignites, pulling him toward a confrontation no invention can stop—and a fate no one can escape.[ Vol.1 ] Ren, a young clockmaker’s apprentice living in 1868 Japan, begins to experience strange visions—glimpses of people he’s never met and lives he’s never lived. When a girl from an elite family speaks words he’s only heard in dreams, Ren is pulled into a mystery that stretches beyond memory and time. As dangerous spirits appear and reality begins to shift, he must uncover the truth behind his visions before everything he knows begins to slip away.

In this world, human are in peril. 72 Obelisks suddenly appeared out of nowhere, infecting the world with Monsters. Amongst this chaos, people look for hope.

A man named Basil Pacifer is the humanity's hope. He is the strongest Mage alive at that point. Sadly, he believes in no man, and he always moves alone.

...

Basil observes the unfolding scene bitterly. He is aware of his impending doom, however he has no grudge. He has lived long enough to achieve things people can only dream about.

Looking back to his past, he realized his life is nothing more than a sad story.

Closing his eyes, he accepted his end — or so he thought.

...

”Look at me! What do you see?“

”Regrets.“

”Don't you want to undo it?“

”Tell me what the offer is.“

Thus, Basil Pacifer returned to the past, being his younger self once again. Of course, he returned back with something.

...

[Ding!]

[Guide to Omniscience is successfully merged with The Chosen One]

[Analyzing The Chosen One's mental capability...]

[Analyzation Complete!]

[Result: The Chosen One is retarded]

[Initiate Brain Configuration!]

No matter how useless the golden finger he received seems, he will reach a higher height than his last life. This time, he will completely erase any regrets he has!