Originally Atsushi was the drummer for Buck-Tick. When the members graduated high school and moved to Tokyo, Atsushi was the only one left in Gunma. He then asked Toll Yagami if he could be the singer for his band SP, but was declined. Ironically, he ended up switching to vocalist of Buck-Tick, after the band fired Araki, and Toll became their drummer.
His last name was originally written with the first kanji as "桜" ("sakura"), but when his mother died in 1990 he changed it to "櫻", the older version. He also wrote "Long Distance Call" about his mother's death. He married Buck-Tick's stylist in 1991, but divorced a year later. They have one child. He married again in 2004.
2004 also saw his acting debut, with the starring role in Ryuhei Kitamura's short film Longinus. He released a book of his poetry and lyrics called Yasou(夜想?, "Nocturne") in 2004.
In 2015, he announced the formation of his second solo project, a band called The Mortal. The group consists of guitarist Jake Cloudchair, guitarist Yukio Murata (My Way My Love), bassist Ken Miyo (M-Age) and drummer Takahito Akiyama (Downy). The mini album Spirit will be released on October 14 and they will play a three date tour in November.