Mao is one of the three main cat characters in Hoshi no Shima no Nyanko. He is a close companion of Hopi and Toto, and together they set out on an ocean voyage in search of the mysterious Island of Stars, with the goal of establishing a new town. Mao is depicted as a cheerful and enthusiastic cat with a strong appetite, often described as a glutton. He is emotional and sensitive, as seen when a dish he cooks reminds him of his mother’s cooking and moves him to tears. His personality is marked by impulsiveness; he once claims to have seen a ghost, leading the group on a nighttime exploration of the island. He also develops a romantic infatuation with a cat named Sakura, which becomes a recurring subplot. Mao’s primary motivation is to help his friends build a thriving settlement on the island, and he throws himself into tasks such as cooking, farming, and exploring. His role in the story is that of a core team member who supports Hopi’s leadership and Toto’s practical knowledge. Over the course of the series, Mao learns to overcome challenges through cooperation and perseverance, growing more dependable while retaining his warmhearted and lively nature. He does not possess any supernatural abilities; his notable traits are his determination, his love of food, and his capacity for deep emotion. His relationships with Hopi and Toto form the emotional center of the group, and his interactions with other inhabitants, such as Sakura and the merchant Kotetsu, help enrich the island community.