Momoka is a supporting character in the anime series Re: Hamatora. She serves as the assistant to the primary antagonist, Moral, a former professor from Facultas Academy. Her background is largely shrouded in mystery, and she appears sparingly throughout the narrative, with much of her character left open to interpretation. She is portrayed as a calm and intellectual woman who often displays a detached, indifferent demeanor toward others. At times, she shows a sadistic streak, suggesting a willingness to manipulate or harm without remorse.

Momoka’s motivations align closely with Moral’s goals. She assists him in his plan to expose the existence of Minimum Holders—individuals born with supernatural abilities called Minimums—to the general public. To further this aim, she leaks information that reveals the hidden existence of Facultas Academy and the identities of Minimum Holders, triggering widespread social chaos and discrimination. Her actions help destabilize society and escalate the conflict between ordinary humans and Minimum Holders.

In the story, Momoka plays a crucial role by directly confronting the main characters. In the episode Worst Promise & Best Memory, she informs the young Minimum Holder Hajime that the debilitating side effects affecting other Minimum Holders are actually caused by Hajime’s own latent power. She then leads Hajime to Moral’s abandoned research facility, where Hajime recovers suppressed memories from her past. This revelation serves as a turning point that deepens understanding of the series’ central mysteries.

Momoka’s key relationship is with Moral. She acts as his loyal subordinate, carrying out tasks that support his machinations. She has little direct interaction with other main characters beyond Hajime, and her interactions tend to be cold and utilitarian. Her development is minimal; she remains a relatively static figure whose purpose is to facilitate the antagonist’s schemes and provide exposition.

Regarding notable abilities, Momoka does not appear to possess a Minimum herself. Her effectiveness stems from her intelligence, composure, and willingness to operate in the shadows. She is adept at gathering and disseminating sensitive information, and she shows a knack for psychological manipulation, as seen when she delivers crucial revelations to Hajime at the most impactful moment. Overall, Momoka functions as a quiet but instrumental cog in the machinery of the series’ conflict, embodying the cold, calculating side of the antagonist’s crusade.