BiSH was a Japanese alternative idol group formed in 2015, often described as the "punk band without instruments." Known for their rebellious concept, raw energy, and genre-blending sound, BiSH gained a strong following in Japan's alternative and idol scenes before disbanding in 2023. Their music incorporated elements of punk, rock, and pop, paired with emotionally charged lyrics and unconventional performances.

BiSH collaborated with ONE OK ROCK on two tracks, "Sayonara Saraba" and "A long way to go", both released on August 31, 2022. These songs showcased a fusion of ONE OK ROCK's anthemic rock style with BiSH's edgy, experimental pop-punk energy, creating a unique and memorable collaboration within the Japanese music scene.