Kyōko Maki is a recurring character and Hana Takayashiki's best friend. She sports blonde hair in a short ponytail, green eyes, and is often seen chewing on a stick or with a lollipop in her mouth. Kyōko presents a tough, punk-like exterior that appears intimidating, projecting a no-nonsense demeanor. Despite this rough facade, she consistently shows kindness and protectiveness, especially toward those she views as vulnerable. She acts as a caring, protective figure for Miki Takekasa, embodying a "cool big sister" dynamic. Kyōko has a track record of defending underdogs and intervening against perceived injustice or bullying, revealing a compassionate core beneath her hardened appearance.

Her close and dependable friendship with Hana Takayashiki is central, with Kyōko serving as Hana's confidante and steadfast companion. Hana's tendency to attract unusual situations underscores Kyōko's role as a stabilizing and protective presence. Kyōko’s loyalty and willingness to stand up for her friends reinforce her function as a reliable source of support within the narrative. Her role remains supportive and consistent.