Akane Kimidori resides at the Coffee Pot café managed by her older sister, Aoi Kimidori. She serves as Arale Norimaki's rebellious best friend within Penguin Village, frequently engaging in pranks and rule-breaking. Her personality blends tomboyishness with occasional aggression when provoked, underpinned by cleverness in devising elaborate schemes. Academically, she typically earns poor grades but exhibits situational intelligence and resourcefulness.
Early manga chapters show Akane sometimes carried alcohol in her canteen to school, leading to discipline, though this element lessened later. Her close friendship with Arale features prominently, including a storyline where they swapped identities; Akane temporarily assumed Arale's life, causing comedic misunderstandings about android traits. She later becomes Tsukutsun Tsun's girlfriend.
In *The Secret of Nanaba Castle*, Akane joins the quest to recover the stolen "Eye of Rainbow" treasure after antagonist Bisna takes it. She helps Arale and other villagers stop Bisna's plan to revive a demonic entity and the Nanaba Kingdom, fitting her role in Arale's core group.
Akane appears in *Dragon Ball* crossover episodes, maintaining her personality and design. During the Red Ribbon Army Saga, she interacts with Goku's group at the Coffee Pot and attempts to ride the Flying Nimbus, but is rejected due to her impure heart. She later features in *Dragon Ball Super* and the *Dragon Ball Heroes: Victory Mission* manga, retaining her adolescent appearance despite chronological aging.
Her abilities include the Cobra Twist wrestling move, listed as her talent. Across adaptations, including the 1997 *Dr. Slump* remake and live-action commercials, her visual design varies—her hair changes from blonde to brunette in the remake—but her core character traits remain consistent.