personnel hide -- vocals , guitar , bass joe -- drums eric westfall -- mixing engineer , recording engineer ( at sunset sound ) s. husky höskulds -- assistant engineer ( sunset sound factory ) daiei matsumoto -- recording engineer ( at hitokuchizaka-studio ) kazuhiko inada -- recording engineer hiroshi nemoto -- assistant engineer ( hitokuchizaka-studio ) kevin dean -- assistant engineer ( sunset sound ) reception '' ever free '' debuted at number one on the japanese oricon weekly charts , replacing his previous single '' pink spider '' , with sales of over 516,000 in the initial week .