Mumei Nanashi is a virtual YouTuber (VTuber) and member of the English branch of Hololive, known as Hololive English -Council-. She embodies the concept of 'Civilization', representing the collective achievements and memories of humanity. Mumei is characterized by her soft-spoken demeanor, artistic talent, and gentle personality. In the series, she often explores topics related to history, creativity, and the human experience, playing a significant role as a wise and thoughtful member of the Council who guides and supports her peers.