Initially wanting to hire several different vocalists because he was unsure of his own voice, he eventually began taking vocal lessons from Toshi's coach and sang the material himself.

[2] Wanting to contrast something unusual with a pop background, hide hired Yukinojo Mori to pen the lyrics to his first two A-side singles.

As a kid, hide was fond of Bow Wow's 1982 album Warning from Stardust, where the A-side songs had lyrics in English and the B-side in Japanese.

The album's cover art features a reproduction of a mask, originally created by H. R. Giger, by Screaming Mad George and Joanne Bloomfield.

(Drink Or Die)" was covered by Flow firstly at Mixed Lemoned Jelly 2016 in Maihama Amphitheater then recorded the studio version for June 6, 2018 Tribute Impulse album.