Kaguya Otsutsuki is the ancient progenitor of chakra in Naruto and one of the series’ most powerful antagonists. She is the mother of Hagoromo and Hamura Otsutsuki and the original source of the conflict that shaped the ninja world. Introduced as the final threat in the Fourth Great Ninja War, Kaguya serves as the ultimate enemy behind the Akatsuki’s plans and the broader history of shinobi, embodying overwhelming power, isolation, and the consequences of seeking absolute control.