In their 12th year since debut, WEST. release their 12th full-length album. Continuing an endless journey in pursuit of being "Yuiitsumuni (one of a kind)," this powerful release embodies the group's evolution and spirit of challenge. The lead track, "Kore de Iinoda!", is written and composed by Daiki Shigeoka. In addition, in anticipation of their first self-produced festival, "WESSION FESTIVAL 2025," held in October 2025, the album includes "Odorushika Naijan!" written by Yukimaru Kumaki of Lucky Kilimanjaro and "Niji wo Kakeru Bokura" written by Shinya Ishihara of Saucy Dog. Also featured are "Reply" by Ryota Yanagisawa of SUPER BEAVER, marking his fifth contribution to the group, the hard-hitting EDM track "BUBBLEGUM," "Wessai Soul!" sound-produced by Ulfuls, and WEST.'s first digital single "Aishu." The album fully explores "WEST.-ness" from every angle. Each edition includes different deluxe bonus tracks. Regular edition includes "Bloody Love" and "Me Time." Comes with a 24-page booklet.