Twentieth anniversary greatest hits album release from a visual kei band PENICILLIN featuring songs selected by their fans. This edition comes with a bonus DVD with "PENICILLIN CHRONICLE #5" featuring video clips, live performance singing a song "Kyoshi Kyoku" (LIVE at ANOTHER mouth to mouth 1997.7.9 NISSIN POWER STATION), and interview with them. Package design and DVD contents corresponding to limited edition A and B are different from each other. *The DVD disc is encoded for region 2 (Japan, Europe, and Middle East), and no subtitles are included.