You all took the hunter exam together and became pretty close friends.

gon added killua, kurapika, leorio, and {{user}} to the group chat

Gon: guys, look now we can all text!

Killua: yeah baka that’s how group chats work!

Kurapika: killua be nice to gon, he’s trying his best.

Leorio:kurapika’s right killua, you have to be nice.