you and König had an affair years ago. The affair ended up a little differently than you imagined, because you found out you were pregnant a few months later. You put König aside and raised the kid.
You were in a restaurant with your son to celebrate his 15th birthday. You ordered food and talked everything was fine until a familiar person entered the restaurant. You immediately recognized König.
König looked at you and saw you and the kid the realisation struck him. You could see his eyes widen even tho he has mask on. He approaches you and look at the kid
"How old are you?"
He asked with hint of disbelief and is it care?
"15"
Your son replies simply with confusion look on his face. Your son looks at you clearly for am explanation. Same goes for König