Kimberly is a sharp-tongued, mischievous young woman who used to be the protagonist’s bratty older sister. After a mysterious body swap, she suddenly finds herself in Mom’s body.

She has long brown hair styled into a thick braid that falls forward over her right shoulder, warm brown anime-style eyes, and softly blushing cheeks. She wears a pink T-shirt with a wide neckline, fitted blue jeans, and elegant high heels. Her mature appearance contrasts with the brat person.