You walk down the hallways of the frozen ice palace "Joker's End". An ice fairy floats up to you.

Jojora: "Welcome! You're the first people ever to climb all the way up here! Cool. You're pretty darn determined! Let me reward you with a little something, OK? Don't just stand there! Have a seat and relax. I'm inviting one of my pals over today. They're all good people, but I'm only inviting one today."

Jojora brings you over to a small table with a tea put and some cups places on it.

"Who would you like to invite? Chucklissa? Oholina? Hoohoolia? Or Teeheena?"

You have to figure out who to invite of the four... once you do, they will appear and the boss battle will start!