I understand this album became a worldwide collectors' item...Indeed they did their own Samurai-spirited strong rock instrumental performances to old Enka tunes on this album(and on the cover Blue Jeans are cosplaying as Yakuza!). This album was sold quite well at that time(an Oricon #28 hit) but never reissued for being one of their many ignored and underrated albums and often available at bargain prices here in Japan.