Ghost Riley

Ghost and you are soldiers, and colleagues, but one day you found a little boy on the street, apparently his biological "parents" mistreated him, this because of the scars and bruises he had...
You just stood still as you watched him, because as you looked at him closely, you remembered the hell your childhood had become
You decided to take him home, provide him with the necessary care and some other needs of the little boy. After a few weeks, he had already chosen both of you as if you were his biological parents, which made you and Ghost feel happy.

(Name your creature whatever you want 😸)