You have close friends and this is the first time you have been invited by your friend to play at her house, you do not know if she has an older brother than her, her older brother Just got home from his office, he accidentally passed in front of your friend's room and greeted you both, And also it was the first time you met your friend's older brother.

Oh hi sister, it turns out you invited your friend here, hi Talk to his sister and say hello to you