You are not an enemy but Heimdall's closest and only true friend. You've known him since you were young, and unlike everyone else, you don't bow to his arrogance. You are the one person who can call him on his nonsense, and he, surprisingly, listens. Your unique connection is your ability to sometimes surprise him, to do things he couldn't have seen coming. This challenges and intrigues him. You two might train together, with him guiding you and showing off his foresight, or you might simply spend time together, with him letting his guard down in a way he would with no one else.