MTL - Back to the Age of Dinosaurs - ~ Section 124. I think I have a problem with my designation.

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

Akira Kisaragi traverses into the Bleach world, unlocking a check-in system.He initially thought that by checking in daily, he could become stronger, soon become the Captain-Commander, join Division Zero, punch Yhwach, kick the Soul King, and marry Unohana...However, the system's style wasn't quite what he had imagined.〈 Check-in complete, obtained Genryūsai Yamamoto's secret roasted sweet potato! 〉〈 Check-in complete, obtained exclusive attribute: King of Normal Attacks, effect... 〉〈 Check-in complete, obtained Retsu Unohana's... 〉Akira's eyes suddenly lit up!“Seems like this might not be so bad after all!”

If human life could continue to grow stronger indefinitely, reaching infinite heights, then one day it might connect with the heavens!

The interview begins:“Boss Gu, what is your view on pursuing women?”“The most important thing is loyalty and protection.”The man turned his head to look at the petite woman beside him, his deep-set eyes glowing with utmost affection.“He's obviously cunning and shameless, relentlessly dealing with both friends and in-laws, without any limits...”Shang Xixia's smile was brilliant, but her slightly twitching lips betrayed her silent complaints.“Boss Gu, why did you choose to inherit and manage the Gu Group?”“There are many ways to live life, I want to...”Gu Jingchen's lips curved slightly, exuding a calm elegance.“If I couldn't be at home all the time,”Continuing her inner complaints, Shang Xixia glanced with great grievance at the man beside her....The most beautiful love is when, after growing up, you are still my beloved childhood sweetheart.