Vocalist Taka (Morita Takahiro,
森田贵宽) is the son of enka legend Mori Shinichi (
森进一) and actress Mori Masako — a detail Chinese J-rock fans cite often. The band name reads 'one o'clock rock' (ワンオクロック) in Japanese, from their early band-practice schedule. Their 2019 Shanghai show was one of the most talked-about J-rock mainland dates of that era.