This song was produced by DJ RYU-G, who also worked on GADORO's "Let's be here". The two have been in contact for some time as they have been performing at the same events and recently DJ RYU-G has been doing some live DJing for TORAUMA. DJ RYU-G gave them beats, but they could not come up with a theme for the song, but when they saw the western sun one day, the theme for the song came to their minds and they started working on it. The song is about the time when the western sun is shining before the evening, and there are some anime sampling words in the lyrics. Cover artwork was created by y.o_camelliadarkness.