First glance makes you believe she's a "classic" naive impulsive genki protag, but the movie destroys those preconceived ideas and show how human she is and how she has her own insecurities
She isn't as "genki" as some character in similar type of shows, and while she may seem dumb at times or bad in some subjects she isn't stupid. She is extroverted but she still keeps a lot things to herself when it comes to very personal stuffs
Also yearner/100, loyal/100

Tho to make it simpler if i know the person i'd just describe risse and add "yeah karen would do that"