Hermana Violencia was founded in late 2017 in Barcelona following the dissolution of Entartete Kunst in 2010, after the release of their self-titled album in 2009, distributed by the record label Bcore. The lineup consisted of Rodrigo Emiliano Zapata Pérez (Entartete Kunst) on guitar and vocals, Guillem Redolat Puget (Entartete Kunst, Malacendra), and Iván Lucio Fernández on drums. They made their live debut in 2019 and in 2020 went into the studio to record a demo. At the end of 2021, they released this 13-track demo on various platforms. In 2022, Nacho Maure Rosés (Entartete Kunst, Le Fou, Void, Sot) joined the band as their drummer. With Nacho on drums, they performed three concerts: at the Garcilaso Civic Center, the Heliogabal venue, and the La Hurraka Cultural Center. In November 2024, they recorded a five-track EP at La Atlántida Estudio, recorded and produced by Edgar Beltri (n.d., Terminal Violence). In February 2025, they released the EP, titled Alpha-Omega, on various platforms.
The band’s style falls within the post-punk genre with touches of surf and noise. Their musical influences include bands such as Joy Division, Misfits, Jesus and Marychain, The Cramps, My Bloody Valentine, The Wipers, A Place to Bury Strangers, El Desván del Macho, The Horrors, Parálisis Permanente, Mudhoney, Dick Dale, Pixies, Dead Kennedys, Nirvana, Bauhaus, and Décima Víctima, among others.
Lyrically, the lyrics deal with themes such as mythology, occultism, anarchism, and witchcraft.