【Dual Male Leads + Mortal Enemies + System + Villain】
Overprotective Demon King × Jealous Little Brat 1v1 Older woman, younger man
A hundred years ago, he swore an oath on his life in exchange for a century of respite for the demon clan.
A hundred years later, the retired villainous big shot just wants to lie flat in the mountains. On a whim, he picks up an NPC and raises him as his kid.
Who could have guessed that the kid he picked up on a whim would be the fated protagonist?!
The System forces him back into his old line of work: playing the villain! And one who specifically targets his own adopted kid!
The sweet, adorable child of the past now points a sword at his throat. “Why are you still protecting those demons?!”
He lowers his eyes and smiles faintly. “Because I’m a demon.”