The curse:lovers of the moonlight CLM

When a prince out of anger,after losing his love makes a wrong decision, and ends up becoming a reason for the death of many innocents,and Is not even accepted in hell. Sent to the earth with the curse of never ending life, and will become a monster (warewolf),once the full moon appears.and untill he finds his cure, should capture the demons. In a modern society, with 2 companions and a curious police officer (Yuri). Will he be able to find the cure to his curse?