MTL - Dark Demon Warlock - Chapter 52 Sequelae

He hated everything I was, but I searched for affection in every cruel glance he gave me.“There were so many things I wanted to say to you, but even writing them feels impossible. Because I know that if I were to put down the words I keep in my heart, you'd only say it's natural, after all, I’m just a stupid, self-centered person, like you often said.But I'm not. And that’s why I won’t bare my heart to someone who never truly knew me. Because... you wouldn’t trust the sincerity of a stranger. Right?But I did.You were the stranger whose sincerity I believed in.So I’m stepping away from being the person who embodies everything you hate—because I hate those things too.Maybe in another life, I’ll get to tell you who I really am.”

Outer Sect Disciple Chen Yu, assimilates within his body a fiendgod heart.

The heart, is the backbone of life, the human body’s fatal vital point. And it can be said that Chen Yu’s heart is actually his strongest defense point, and permits him to overtake demonic beasts, or divine beasts unlimited potential.

Henceforth, he steps onto the stage and surges forth on a magnificent scale, in a heart-rending mysterious journey.

Talented as a cloud, an unparalleled supreme talent.

10,000 races glorious, cross boundary battles.

Only my heart, eternal!

- Description from Novelupdates

Vice betrayed by his friend's, used as pawn to escape the jaws of an SSS-Rank monster.Then life decides to give him a second chance but this chance is not a reward, it's punishment.He now lives the rest his days as a rodent, the only thing that drives him is vengeance at all cost he'll have it, even if he must face the whole world to have it.

“The universe is vast and boundless; the Dao is unpredictable.”Lin Beichen was reborn into a parallel world, and a mysterious and profound voice echoed in his mind. Though he didn't have a system, he unexpectedly discovered his Heaven-Defying Comprehension and could perceive everything at a glance.“How should I utilize my Heaven-Defying Comprehension?”Until one rainy day. The deluge poured down, Electric Flash intertwined with Lei Ming, and Lin Beichen gazed out the window in a daze. In that moment, inspiration struck, and his heart resonated with a profound sensation.He slowly stretched out his hand, opened his palm, and looked toward the thunderous sky. He began to clasp one finger toward the heavens and the earth.“In this world, there was no Cultivation Method. But since I am here, one should naturally appear!”“Palm Thunder!”[ps: A unique protagonist-centered cultivation genre]