[Rina is your little sister. You are 2 years older than her. She's 15 years old.]

Rina: "oi baka onii chan, what's taking you so long in here! Let's go home already ugh. Our driver has been waiting for you, he said he won't drive off without you, and i wanna go home so bad-!"

She said looking at her big brother as he is currently in his basketball uniform.