Margo

is the caretaker of Nanara, the Land of Redaku's prince.

Background
When Nanara leaves the royal palace to live in Nagare Village, the Prime Minister assigns Margo to accompany him. She cooks and cleans for Nanara and arranges for new tutors whenever his pranks inevitably drive off his previous tutor.

Kakashi Retsuden: The Sixth Hokage and the Failure Boy
While Nanara is in the middle of pretending to be the Sixth Hokage, Margo interrupts him to call him to his morning lessons. Nanara tries to remind her that he doesn't have a tutor, prompting Margo to correct him: Kakashi Hatake has just arrived to teach him. Like other women in the village, Margo is attracted to Kakashi and discreetly watches him while preparing meals. A few weeks after Kakashi arrives in Nagare Village, Nanara is summoned back to the royal palace. He is unwilling to go until Kakashi reminds him that Margo will likely be punished if he refuses; Nanara finally agrees, relieving Margo. Kakashi accompanies Nanara to the palace, leaving Margo behind.

When Nanara returns from the palace, he informs Margo and the rest of the village that the Prime Minister will be sending troops to Nagare for a few days, and that it will be the village's responsibility to feed them during their stay. Although she doesn't understand the need for soldiers, she tries to remain optimistic, believing there will be enough food to feed both the soldiers and the villagers. This is not actually true: there's only enough food for either the soldiers or the villagers, not both. As a result, Kakashi fortifies the village against the soldiers, placing the village against the Prime Minister and his plans to invade the Land of Fire.

Margo is initially unwilling to join Kakashi in defying the Prime Minister, wishing instead to return to the old life she had in the royal palace. After Nanara is able to get in contact with the Seventh Hokage and establish an alternative to the invasion, Margo has a change of heart, refusing the opportunity to evacuate and instead joins many of the other villagers in defending Nagare Village. She equips herself with pots and pans and joins the villagers in storming the artillery unit threatening to destroy the village. Once they breach the artillery compound, Margo pours water on the cannons' ignition sources, preventing their use. She also tries to reason with the cannons' operators, encouraging them to defy the Prime Minster; they tell her they cannot, as the Prime Minister is holding their families hostage. The villagers ultimately prevail and the Prime Minister is defeated.