Reona Kisaragi manages the old-fashioned game store Kisaragi. She has long silver hair, blue or lilac eyes, and a tall, curvaceous figure with a large bust. Her everyday outfit is an off-white t-shirt with navy blue jeans and flat shoes.

Her personality blends outward cheerfulness with underlying manipulative tendencies. She exhibits enthusiasm for video games, especially the full-dive RPG Kiwame Quest, and leverages her physical attractiveness to pressure customers into purchases through seductive or forceful methods. This includes deceiving Hiroshi Yūki into buying Kiwame Quest at an inflated price under a strict no-return policy, despite knowing the game’s age and diminished value. Her motivations trace back to high school, when she played Kiwame Quest as a regular player but abandoned independent play after failing to unlock its secrets or complete it. Frustrated, she shifted to a supportive role. Her ultimate goal is to marry whoever clears the game, driven by petty revenge against Sōichirō Kamui—the sole known clearer—who once rejected her due to her large breasts.

In Kiwame Quest, she operates under the player name Reona as a fairy avatar, a privilege from her shop management role. This fairy form wears visually revealing attire and remains invisible to NPCs, monsters, and other players; only Hiroshi can see, hear, or interact with her. She provides Hiroshi tactical advice and emotional support during gameplay, though her guidance often carries sarcasm or mockery. Despite manipulative sales tactics and occasional cruelty, she demonstrates genuine dedication to helping Hiroshi overcome the game’s challenges, using her deep knowledge of its mechanics.

Her background shows no significant character development beyond her established role. She stays committed to marrying a game clearer while balancing deceptive real-world actions with her in-game support duties.