Nene Satō is a supporting character in the human-world portion of HOPPECHAN -Mystery of the Sun Kingdom and the Black-Cheek Team-. She is the older sister of the protagonist Ayumu Satō, who goes by the nickname Hoho. Nene is an adult female with short brown hair and orange eyes. Her younger sister addresses her as Nene-nee, reflecting a close sibling bond. Nene exists in the real-world narrative that runs parallel to the fantasy events in the Sun Kingdom, but details about her occupation, personality, personal motivations, and specific role in the story are not documented in available sources. Information about any character development or notable abilities she may possess is also absent from the material that has been released about the series.