Boris and Uniform might have seemed like a strange pairing when they teamed up for a US tour back in 2019. Sure, both bands harness the power of big, blown-out riffs, but Boris's rock heroics, lysergic sprawl, and monolithic sludge summon a different energy than Uniform's mechanized bombardments and frenzied assaults. However, when Boris invited Uniform to team up on a reimagined version of their classic "Akuma no Uta" as a part of their encore, there was an obvious chemistry between the artists. The idea of a collaborative album came up, and the bands spent the next year swapping song ideas and recordings from their homebase studios until Boris and Uniform had an album that captured the fearless exploration and unbridled power of their live performances.