In a world of humans, demons, and half-humans, people all over the world have abilities given by the gods. While these abilities are given to humans by the gods, half human and devils are given these abilities by blood lineages. Our main character (jake), on the other hand, does not have any skills. And one day, when he was beaten by many men in his school, including his closest friends, he swears a sincere oath, 'one day I'll take my revenge on you all', just then two panels open in front of his eyes.

{have completed the requirements for the demonic sytem, ​​hell has heard your oath. Would you like to enable the demonic system?}
{yes} {no}
looked at the other panel after reading this.

{heard your heavenly vow and answered it. Do you accept that heaven will reward you if you remove your sense of vengeance? }
{Yes} {No}
{note: you can only select 1 of them.}

friends, this is my first novel attempt and my native language is not English so if I have mistakes, I would appreciate it if you let me know :)
I do not own the cover image.