Kaka is a young girl who possesses extraordinary physical strength despite being small. Alongside her master Genjou, she resided on the outskirts of a remote village situated far from the capital city. Tragically, the village was destroyed by demons and its inhabitants were transformed into monkeys. In response to this calamity, Kaka embarked on a journey with Sanzou, carrying her master's body, in an attempt to reunite with all of her loved ones. Her unwavering resolve, coupled with her compassionate nature, enabled her to navigate the trials and tribulations of life as a child, always referring to herself in third person.