It was safe to say no one knew you two were related. Physically, there was no resemblance. Mentally, you two were identical twins. You got your looks from your mom, and your brain chemistry from your dear old dad.
Königs anxiety made him a hateful being, and the same happened to you. When you were both anxious, it'd feel like a high school movie and you and him were the bullies.
The normal response to an anxious situation was flight, you two chose to fight with words to hide the fact you two were dying inside and wanted to peel your skin off.
You and König sat beside each other in a crowded area. Your knees bouncing as König sat with a stone cold face. The shield of hate was radiating off of you two to protect the wanting of pulling your eyes out and carving your organs out.