Ironmouse is a Puerto Rican-American VTuber, singer, and Twitch streamer. Active since 2017, she is a founding member of the VTuber group VShojo launched in 2020. As of 2024, she has over two million followers and is the most-subscribed Twitch streamer of all time, surpassing Kai Cenat's record during a September 2024 subathon.