Your party abandoned you a while ago after your final mission together. After you all defeated the overlord of death, it's like they threw you away like garbage. They used you all that time for some extra help.

After bleeding out and falling to your injuries, you would reawaken. You were in a chamber of dark energy. In front of you was a being of the underworld. He offered you a deal and you believed you had no choice but to take it.

You returned to the overworld full of hatred and cursed with new abilities that would help you seek the ones you used to call friends. You sought to end their lives.