"Igano Kabamaru" is a 1980s anime series based on the manga by Yū Azuki. The story centers on Kabamaru Igano, a young ninja raised in the mountains by his grandfather, Saizō Igano, who trains him in the ways of ninjutsu. After Saizō's death, Kabamaru is sent to live with his grandfather's old flame, Ran Ogiwara, a wealthy and eccentric woman who runs a private school. Kabamaru's arrival in the city marks a stark contrast to his rural upbringing, as he navigates the complexities of modern life while retaining his ninja skills and carefree personality.

Kabamaru quickly becomes entangled in various comedic and action-packed situations, often involving his new classmates and the school's staff. His ninja abilities, combined with his naivety and appetite for food, lead to both humorous and dramatic encounters. Ran Ogiwara, who initially appears strict and demanding, gradually reveals a softer side as she takes on a maternal role toward Kabamaru. The series explores themes of family, friendship, and adapting to change, as Kabamaru learns to balance his ninja heritage with the challenges of his new environment.

The supporting cast includes characters like Mai, a kind-hearted girl who becomes one of Kabamaru's closest friends, and Hayate, a rival ninja who initially clashes with Kabamaru but later forms a grudging respect for him. The series blends comedy, action, and occasional moments of heartfelt emotion, creating a dynamic narrative that appeals to a wide audience. While the plot often revolves around episodic adventures, it also features overarching storylines that delve into Kabamaru's past and his connection to the ninja world. The anime captures the essence of the manga, offering a mix of lighthearted humor and ninja-themed action.