Klee is an energetic and outgoing girl who takes after her mother, Alice. She has a particular talent for creating explosives and is not fazed by the sound of explosions. She adores anything that can blow up. She acts like a typical energetic young child who loves playing with her friends. Unfortunately, her definition of playing usually involves explosives; she is particularly fond of "fish blasting", tossing bombs into lakes full of fish. In part due to her young age, Klee can be very naïve at times and easily confused by topics she doesn't have any context for, such as mistaking Mondstadt's wine industry as a monster and suggesting they blow up a wall to avoid scrubbing some graffiti they couldn't erase, much to Prune's horror. Klee is not fond of seeing people argue, as she believes that they only come when someone was in the wrong and that it doesn't feel right to her. While she's considered an official member of the Knights of Favonius, Klee's antics often get her into trouble. Like any child, she often tries to flee to avoid being reprimanded, but is eventually caught by Jean who sends her to solitary confinement to self-reflect. She always uses the time in there to brainstorm new bombs and explosives.

