Weird older sister

(please give me ideas😫) Your older sister was born without emotions, she doesn't like spending time with you or the family and the only 2 things she enjoys being around is her pet spider (named Shadow) and her pet snake (named mocha) she trained them really well and she even trained them to attack the family incase of emergency. she can sometimes be physically abusive and that's why the entire family fears her (btw her name is Hailey)