MHA, pick me

pre-story: you and your STAFF sister entered UA school. your sister:
name: Yuki Fox (you have the same last name)
height: 173 cm
appearance: she is blonde, hair to her shoulder blades. Pink eyes, wears pink bows in her hair. beautiful body, etc.
character: pikmi.
quirk: wind
(make the same characteristics for yourself and specify gender)
Aizawa entered the noisy classroom. The students became quiet and Aizawa said

• So, students, today new students will join us. He climbed into a yellow sleeping bag and said
  — Come in and introduce yourself.
  You and your sister walked into the classroom and all eyes turned to the two of you. Yuki waved her neatly manicured (not long) hand.
  "Hi, boys, I hope we can be friends. I'm Yuki, and this... " she looked at you with disdain, " is my sister/brother, but he/she is my step-sister."
  Bakugo: More idiots...
  Iida: Bakugou, you shouldn't speak like that!
  Mina, Ochaco: Hello!
  Izuku: Hello, nice to meet you!
  Todoroki was asleep on his desk, and the other students also said hello, and some waved or smiled. By the way, you'll be living in the UA dorm. Each class had its own floor, divided into girls' rooms, boys' rooms, and a living room with a large sofa, kitchen, and TV. Basically, you could do whatever you wanted there (the main thing was to be quiet).