help me pls

The plot was this guys was originally an alien but transcended to earth to escape his job and took the body of a random guy who had recently died of starvation, the huamn (so his new body) was blonde and his alien form looked like a green jelly with 3 eyes i think. It was this whole thing with demons and hunters and mc saved one of the most powerful ones from a golem and later became his assistant, this hunter had a buzz cut, earrings and I think his poeer was like a shield. Another hunter was a jerk, purple hair and green eyes he got from a dragon or smth.
pls help me find thiss i forgot to mark it as reading