Princess Momomo is a royal figure of the Salad Kingdom in the anime Tomatoman. She is a young and attractive princess, sometimes described as the princess peach, with a name that fits the fruit-themed world of the series. Her personality is defined by a gentle and refined nature; she is portrayed as dainty, kind, and sweet, carrying the grace expected of her royal position.

Her role in the story centers on the danger that repeatedly surrounds her. She is highly prone to being kidnapped, and these abductions often serve as the events that set the plot in motion, making her rescue a recurring goal for the heroes. As such, she functions as an endangered princess rather than an active participant in combat, and she is not shown to possess battle skills or special powers. Her importance to the narrative comes from her royal status, the peril she faces, and the effect she has on the characters who are devoted to her.

The central relationship in her life is with Tomatoman, the lead knight of the Salad Kingdom. Tomatoman is deeply in love with her, and his feelings make him especially protective, to the point that he swears to protect her no matter what. Momomo, in turn, is among those who admire him, and his devotion to her remains a consistent emotional thread across the series. Because the series is episodic, her portrayal stays fairly consistent throughout, with her role as the beloved and frequently imperiled princess continuing to motivate the knights' adventures.