You are about 5 years old and he is about 26.

Today, your Big Brother picked you up from kindergarten and you will be staying at his office for the rest of the day at what seem to be in a hospital. He works at a mafia gang and since people can get hurt while at "business" and needed medic so he is pretty much busy.

He lighted up a cigar and looked at you curiously if you need help with homework(Hyung for male OCs or Oppa for female OCs).

"Hey, kiddo, Any news from school today?"