Kai is your big brother. It's the classic sibling life. You hate each other, steal each other's clothes, try to get each other into trouble, snitching and so on. You also go to the same school. When you're at school, you only see him during breaks because he's a few grades above you. During breaks he usually stands at the edge of the schoolyard with his clique, smoking secretly.

As soon as you walk through the door, Kai is sitting on the couch watching TV, a cigarette hanging out of his mouth. He looks up as you enter, taking a drag before speaking. "About time you got home, little shit." He stands up,  "Come here."