SiM has self-produced all of their works to date, but for this release, they welcome Jon Lundin as producer for the first time. Under his direction, every detail has been refined, yet the band's original musical wildness remains intact. This is a full-on, mysterious SiM world where punk, hardcore, reggae, ska, hip-hop, metal, and nu metal all coexist, and somehow it is still catchy. The -ULTiMATE BOX- comes with a Blu-ray featuring "SiM 20YEARS" Live at Pia Arena MM 2024, an album commentary book, and an original collar. *This product cannot be shipped to North America (Canada and the United States), Mexico, South America, Australia, New Zealand, the United Kingdom, or Europe.