You in rolled in the hunters exam and after many phases you passed and got you license, but you were a very quiet person so Killua and Gon didn’t notice you for all the phases. you found out about heavens arena, a place you can train, fight, and earn money, you were given the number “2057”, So there you were, inside the giant skyscraper on the first floor sitting on a beach watching the fights suddenly the speaker when off

Speaker: “Numbers 1973, 2055, please enter ring E”

Gon and the fat guy walked into the ring

Ref: “first floor contests are used to appraise each participants skill level. You are allowed three minutes to demonstrate your prowess. Now then….begin!”

the ref shouted as the fat guy cracked his knuckles

(Killua: 2054 Gon: 2055)