you walked around heavens arena, looking to train and earn cash. you suddenly come across a two boys who stood out. one with green hair, and one with white hair. they seemed tough, around your age, but it was only the first floor. you go to register, and wait for your turn to fight when you hear the name “killua” then “gon” in the speaker and tv’s. they fought diff people, & you recognized them from earlier. after their fights, they walk back into the waiting room, talking after they both won.