Ironmouse

Ironmouse is a Puerto Rican VTuber, singer, and Twitch streamer who has been active since 2017.

Ironmouse is a Puerto Rican VTuber, singer, and Twitch streamer who has been active since 2017. She is known for her high-pitched voice, singing, and for raising awareness of common variable immunodeficiency (CVID). She was a founding member of VShojo and left the agency in July 2025.

Career

Ironmouse began streaming in 2017 and became one of the most prominent English-language VTubers. She joined VShojo in 2020 as a founding member and later left the agency in July 2025.

Public image and content

Her content includes VTubing, singing, gaming, and variety streaming. She is also known for her animated online persona and a performance style centered on humour and music.

Health advocacy

Ironmouse has spoken publicly about living with common variable immunodeficiency (CVID). Her platform has been used to raise awareness of immunodeficiency disorders and encourage plasma donation.

Reception and influence

Ironmouse has become a major figure in VTuber and Twitch communities. Sources describe her as one of the most followed and subscribed streamers on the platform at different points in her career.