Born July 7, 2000, Momo Nishimiya possesses a unique heritage as the daughter of an American jujutsu sorcerer, a rarity in the predominantly Japanese jujutsu society. This lineage secured her place at Kyoto Jujutsu High, where she serves as a third-year student alongside Noritoshi Kamo and Aoi Todo.
Despite her age, Momo maintains a petite frame and childlike features. Her blonde hair is typically swept into two upward pigtails fastened with black ties, contrasting her pale blue eyes. She dons a dark, witch-inspired robe, black pointe shoes, and a cat collar, accessorized with two studs in her left ear. Her bamboo broom is a constant companion, essential to her fighting style and evoking a Ghibli-esque witch aesthetic emphasizing flight.
Momo projects a carefree demeanor but bristles when dismissed due to her youthful appearance. She forges strong bonds with fellow female sorcerers like Kasumi Miwa and Mai Zenin, fiercely advocating for women in the male-dominated field. This fuels her initial antagonism towards Yuji Itadori, marked for execution, and rivalry with Nobara Kugisaki after Nobara insults Mai. Deeply loyal and protective, Momo swears vengeance for harmed comrades and instinctively shields Miwa from lethal threats. She finds Aoi Todo stressful and admires actor Sebastian Stan as her ideal type.
A semi-grade 2 sorcerer, Momo specializes in **Tool Manipulation**, telepathically controlling her broom for flight and combat. Her signature **Wind Scythe** technique scrapes the broom's bristles to unleash cursed energy-infused wind blades. While less suited for direct solo confrontations, she excels in aerial reconnaissance and tactical support. During the **Night Parade of a Hundred Demons**, she guided allies by pinpointing cursed spirits from above. At the **Kyota Goodwill Event**, she scouted Yuji, clashed with Nobara using wind gusts to maintain distance, and aided evacuation during the invasion.
In the **Shibuya Incident**, Momo coordinated assaults against Pseudo-Geto using a flaming lantern signal. She protected Miwa from Maximum: Uzumaki and confronted Uraume, though her wind attacks proved ineffective. Kokichi Muta's death hardened her resolve for retribution. Following the **Zenin Clan massacre**, she tearfully received Mai Zenin's body from Maki. During the **Culling Game**, she advised delaying communication rules, trusting Maki and Ui Ui. She monitored Kinji Hakari's points and participated in strategizing Satoru Gojo's release from the Prison Realm. She later observed Gojo's battle against Sukuna via broadcast, expressing a desire to contribute more meaningfully.
Momo arranges dishes, enjoys fresh cream, dislikes crab, and shops for cute items. Her name's kanji signifies "west," "temple/shrine," and "peach." She ranked between 32nd and 41st in Jujutsu Kaisen popularity polls.