Ayumu Miho is a supporting character in the anime Alice & Zoroku, known primarily for being the best friend and classmate of Hatori Shikishima, another girl who possesses the powers of a Dream of Alice. Ayumu is depicted as a female adolescent with gray eyes and black hair cut to neck-length. Her role in the story is deeply connected to Hatori, as she is the closest person to her and is initially involved in the discovery and use of Hatori's supernatural abilities.

In terms of personality, Ayumu comes across as a concerned and loyal friend. When Hatori first realizes she has the power to manipulate her environment, Ayumu joins her in experimenting with and enjoying these newfound abilities. She revels in seeing Hatori use her powers to make her parents happy, showing her supportive and caring nature. However, as Hatori begins to change and isolate herself from others, Ayumu becomes increasingly worried. Her concern grows when Hatori's power grows out of control, culminating in an incident where Hatori freezes time for everyone around her except for Ayumu and the series' protagonist, Sana. This event highlights Ayumu's unique position as someone Hatori's power does not affect, possibly due to the close bond they share.

Ayumu's motivations are straightforward and rooted in her friendship. She is driven by a desire to support Hatori and to see her happy, but also to protect her from the consequences of her actions. After Hatori uses her power too much and can no longer attend school, a worried Ayumu takes it upon herself to return to a location in Harajuku to search for Sana, hoping to find a solution or help for her friend. Later, after Hatori and Sana become trapped in the alternate dimension known as Wonderland, Ayumu is shown remembering a promise she made with Hatori, and she begins to fear that her friend may never return. This demonstrates her deep emotional investment in their relationship and her fear of losing the person closest to her.

Ayumu does not possess any notable supernatural abilities herself; she is an ordinary human girl whose significance in the story comes from her emotional anchor to Hatori. Her key relationship is exclusively with Hatori Shikishima, as she serves as a representation of the normal life and friendship that Hatori risks losing as she becomes more consumed by her powers. Through Ayumu, the narrative explores the impact of Hatori's actions on those who care about her, and her concern helps to drive the plot forward in the arc's second half.