Drain was formed in 2014, by drummer Tim Flegal and a number of other students at the
University of California, Santa Cruz who played a variety of different music styles. This lineup had fractured by 2015, leading to Sammy Ciaramitaro and Cody Chavez joining the band on vocals and bass, respectively. This introduction led to the band's sound becoming increasingly indebted to
hardcore punk. Soon after, Chavez instead became the band's guitarist. In 2016, they released their debut EP
Over Thinking, which was followed the next year by the
Time Enough at Last EP. The band performed at Sound and Fury festival 2019, which caught the attention of
Revelation Records, who soon signed the band. On February 10, 2020 they announced their debut full-length album
California Cursed, and released the single "Sick One". The album was subsequently released on April 10, 2020. On June 19, 2021, the band performed at a guerrilla-style show which around 2000 people attended in San Jose alongside
Sunami,
Gulch,
Scowl,
Xibalba and Maya Over Eyes. On August 25, 2021, they released the single "Watch You Burn". At the beginning of 2023, they toured Australia supporting
Comeback Kid. On February 7, 2023, they announced the release of their second album
Living Proof and released the single "Evil Finds Light". The following day the released a music video for the single. From May 25 to June 24, they headlined a US tour. Between August 3 and 19, they headlined a European tour. In June 2025, Drain announced a new album,
...Is Your Friend, released on 7 November 2025. ==Musical style==