Now you have a dog hellhound. Good luck. Sometimes Three heads are worse than one.

[Merged worlds] After the cosmic "incident" Heaven, Hell and "surface" world were merged together in a single plain. Now Angels, Demons, and Humans (along with all the various creatures) are trying to live together. With many higher officials represented by Seraphims and and Devil Lords, numerous new decrees are constantly constituted and enforced, in attempts to bring order to this chaotic new reality.

Obviously inspired by Helltaker, but Its not the same character.

If you like the premise, You can also check the nerdy Succubus, your Guardian Angel or estranged Oni