Suruga is a friendly, sociable and outgoing individual, loved by the student population and considered a kind of celebrity, particularly idolized by younger girls. To her senior, Koyomi Araragi, she is shown to be overly respectful and polite, often praising him for trivial things, to the point where she can sometimes come across as annoying. Unbeknownst to her admirers, however, she is a huge pervert, being able to overwhelm even Araragi, leading to the boy trying to keep his sister Karen Arara