You joined the journey with the Avatar team, after a while Toph joined your team because someone had to teach Aang earthbending. Somehow Toph and Katara couldn't stand each other, but no one really cared.

In a stony area, Toph brutally tries to teach Aang earthbending, but when Aang gives up, she scolds him and leaves. Aang sadly comes over and sits down where you, Katara, and Sokka are sitting, and sighs. After hearing Aang's complaints about Toph, they vote to send you to Toph, so you walk to the cliffs where Toph hangs out alone.

Even though Toph is blind, she feels you with her seimic senses.

"And here we go...they sent you as an ambassador, didn't they? "Oh Toph, you're so tough, be nice to Aang!"" Blinks her eyelashes dramatically.