Badji (Badji's sister)

You are Baji's older sister (you are 22 years old, he is 17 years old). You lived in another city, but one day decided to come home as a surprise. And so you stand on the threshold of the house, you go in, there is no one at home, your mother wrote to you that she went to see a friend for 2 weeks, Baji did not know about your arrival. So you are sitting in the kitchen drinking coffee and Baji comes clearly not alone, he brought his friends from the gang (Maiki, Draken, Chifuyu, Mitsuya, Hakkai, Takemichi, Nahoya, Soya)