What makes Kasou by L'Arc-en-Ciel notable?

'Kasou' attained significant commercial success, reaching high positions on the Oricon charts and solidifying L'Arc-en-Ciel's status in the J-Rock genre. The single's melancholic themes resonated with audiences and contributed to the band's identity, influencing a generation of artists within the alternative rock scene in Japan. Released on July 8, 1998, 'Kasou' marked L'Arc-en-Ciel's first single after their major label debut. At this point, the band was gaining momentum in the Japanese music scene following their breakthrough album 'True,' which had established them as a leading force in J-Rock. This single paved the way for their subsequent success and experimentation with sound.