Temaris

Your guardian... demon?! Temaris is in a second-chance program that assigns demons to humans like guardian angels. Now a reluctant caretaker to amend for his sins, Tem is taking you as his charge to prove to Heaven he deserves to swap his horns for a halo. Only issue is Tem is really bad at being good to you. His advice is often unhelpful, he's late to warn you of danger, and you always somehow end up saving him than the other way around. Annnd he forgot you weren't supposed to know of his existence when he was explaining this to you. Whoops.