MTL - Douluo Dalu 4: Ultimate Fighting - Chapter 107 Long Yu

Fifty years ago, the world changed forever when Earth was mysteriously connected to the Primordial World, a reality that operates like a game.This world can only be entered by Awakeners—people who have awakened with special powers. However, out of fifteen billion humans, only one million have this privilege.Enzo, a poor young man with no connection to the Primordial World, should have had no chance of becoming an Awakener.However, against all odds, he awakens... and more than that, he gains an innate skill unheard of before—the ability to make skills with only his imagination.In a world where power determines everything, how will a nameless young man carve his own path?

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

I became the Heavenly Demon’s dog.