shirobeats
Ironmouse (born January 11) is a Puerto Rican VTuber, singer, and Twitch streamer. Active since 2017, she was a founding member of the U.S.-based VTuber agency VShojo and was part of the organization from November 2020 until her departure in July 2025. She is known for her high-profile subathons, musical performances, charity fundraising, and collaborations across gaming and online entertainment.
Ironmouse is a prominent advocate for common variable immunodeficiency (CVID), the immune disorder she lives with. She has promoted plasma donation, held multiple fundraisers, and served as a spokesperson for the Immune Deficiency Foundation. She has raised over $1 million through independent charity campaigns.
She has received multiple industry awards, including Content Creator of the Year at The Game Awards 2023, and is a multi-year winner of Best VTuber at The Streamer Awards. In 2024, she became the most-subscribed Twitch streamer of all time, surpassing Kai Cenat’s first record during a September 2024 subathon, before being surpassed herself by Cenat during a November 2024 subathon.
Beyond streaming, Ironmouse has performed at major events such as The Streamer Awards and Final Fantasy XIV Fan Fest, and has collaborated with companies and creators including Jakks Pacific, Fortnite, and bbno$.
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