A collaborative album by the ultimate weapon of the underground idol world and former SUPER STUPID member Jackie Otaka! Progressive NANTAYARA full of Sgt. Peppers, supervised by Atsushi Sobuni! Formed 9 years ago. An underground idol group, NANTAYARA IDOL performs more than 200 live shows a year. A two-piece unit consisting of Mami and Aoharu. Guitarist Jackie Otaka, who formed the legendary melo-core band SUPER STUPID after working in the band Casinos with Akira Tsuneoka of Hi-Standard, and has fascinated music people. The album created by this totally different collaboration unites space and underground, and as the title says, "Silver Metal Love Songs, Baby! The sound!