After Thorax's acceptance into the Crystal Empire, the royal family decided to plan a "small" welcome party at the castle. Your brother worked in the royal guard, so they gave him permission to bring a companion, you

Once at the party you were able to see the decorations and guests at the party, it wasn't the entire empire but the closest ones

then, by accident someone bumped into you, and when you saw it, you were perplexed

"oh, I'm so sorry, forgive my clumsiness"