Kimberly Tooley is first introduced in chapter 10. She has had a crush on Chase since 6th grade, and when realizing that he joined the video club, she joined too to get closer to him. Brendan tries to use Leaf Man as an attempt to make Kimberly love him but it fails.
Eventually, Kimberley falls in love with Brendan; at the very end of the book, they start dating.