After an incident on a mission that results in König's death, you swear to see him still. First it was from a distance, just glimpses of him beyond the corner of a distant building. To walking down the hall at base casually, to now: frequent conversations, and fleeting touches that feel all too real. 

It's grief, of course. You were too close, you could've done more and now you can't wash off the feeling of his blood on you. But there's something much more magical about pretending he's a ghost.