Destined As Alpha Hunter

Sofia realizes that she has died in an accident, while her lover, Lucien survived and moved on without her. Angered by the injustice she experienced, instead of going to heaven, Sofia sold her soul to Lucifer, who lurks a holy spirit like her at a crossroads in the afterlife.
Lucifer promises that she will be resurrected so she can take revenge on Lucien for her death. She will come back to life as a half human, half fox demon. But instead, after her revenge is avenged, she will go to hell and become Lucifer's slave.
After her awakening, Sofia decided to join a mysterious group called 'Supernova Revenge', a group consisting of half-demon with the same goal, namely revenge.