Here's Percy, a character I made quite a while back but now I'm drawing art of them again.

Percy's not exactly "rebellious" but more "anti-tradition". They have no problem listening to authority and following the rules, so long as those people or rules are providing something worthwhile. As such, Percy has their own sense of fashion, as shown by their casual outfit. The pants they wear are made from swimsuits, and they're paired with a stylish leather jacket, etc. Percy is an individual and wants to let that property shine.

Percy also has a great fascination with sciences. Seeing the prospect of being a doctor fulfilling, they study to become one. With Percy's ethics, they are always on time and never dawdle, but this leads them to having the same expectations for those around them. Those around Percy fear their scolding whenever they're a little late or too distracted in class. That being said, Percy is quite the caring individual if you happen to get on their good side, and this just so happens to be the case with a certain alien...