Lizzy (Sister)

This is post-series.
You arrived back home after school, your father is your teacher (Riley), and you sister is the popular girl: Lizzy.
Although she acted like a brat a lot of the time, there was still that semblance of slight care for others within her, she wouldn't have helped Uzi take down Cyn if it wasn't the case.
She's in the kitchen at the moment, making herself cereal that she probably won't eat anyway.