During his time growing up in Higashinada-ku, Kobe, Japan, Miller began to produce music and sing with friends as a side-hobby and a way to pass the time. After relocating to Manhattan, New York, Miller expanded upon his music career by starting his Pink Guy persona, which paved the way for his Joji persona.[4] Miller originally announced his Joji album on 3 May 2014 alongside the first Pink Guy album. However, Miller subtly cancelled the project until he began releasing music under the name PinkOmega.[39] Miller released two songs as PinkOmega: "Dumplings" on 4 June 2015[40] and "wefllagn.ii 5" on 28 August 2015,[41] both of which were later released on the Pink Guy album Pink Season, the latter being re-titled "We Fall Again".