Sanniang Bilibili, often known as '33 Niang', is the iconic anthropomorphic mascot of the Chinese video-sharing website Bilibili. She is depicted as a cheerful, energetic young girl with cat-like features and a television-shaped hairpin, symbolizing the platform's vibrant and creative community. In various anime-style promotional materials, Sanniang acts as the face of Bilibili, representing its core values of inclusivity and innovation. She plays a central role in engaging users, guiding them through events, and fostering a fun, welcoming environment.