MTL - I Just Want to Play the Game Quietly - Chapter 1874 9th day emperor

Blayn transmigrates into the world of Akame ga Kill and obtains the Mangekyō Sharingan—Kamui! Not just one, but both Kamui!

Every myth and legend is a path to Godhood!

When humans enter the interstellar era, ancient cultivation techniques shone with new life. Your genes exist with you! A single sentence showing the true meaning of cultivation. Myths and legends are not a fantasy, there are ancient mythological genes in the bodies of everyone.

The Hou Yi Gene allows you to shoot a hundred miles, using a single arrow to break down the dome of heaven.

The Kuafu Gene allows you to run with flying speed, chasing after the sun and moon.

The Divine Dragon Gene allows you to soar among the clouds, roaming around the starry space.

….

Almost ten thousand years have passed. Feng Lin came from the 21st century to this majestic era that surged forth with great momentum. Based on his understanding on the myths and legends of the ancient earth era, he embarked upon a unique genetic cultivation path.

Monkey Gene + Stonebirth Gene = Stone Monkey Gene

Stone Monkey Gene + ??? = Spiritual Stone Monkey Gene

Spiritual Stone Monkey Gene + ??? = Handsome Monkey King Gene

Handsome Monkey King Gene + ??? = Sun Wukong Gene

Sun Wukong Gene + ??? = Great Sage Equal to Heavens Gene

- Description from Novelupdates

Kael Veyne was betrayed, hunted, and left for dead in the depths of the Abyssal Dungeon.As an infamous assassin, he was the empire’s deadliest shadow—until the day his guild turned on him.Ambushed in the Abyssal Dungeon, his body was torn apart, and his soul was consumed by the abyss. But death was not the end.He reincarnates 25,000 years later with the Devouring Bloodline System. Kael awakens in the body of a noble scion sharing a similar name to him, and his very essence fused with eldritch power.With every kill, he absorbs primal energy, evolving into something far beyond human. Monsters, mages, mancers, knights, assassins—nothing is beyond his reach.

…but it seems pretty doable.