Solid is a four-man idol unit managed by TSUKINO TALENT PRODUCTION, part of the SQ series that includes other groups like QUELL. The group's leader, Shiki Takamura, not only leads but also produces and writes songs for Solid. He was previously a member of a highly popular idol group alongside figures from QUELL, VAZZY, and infinit0. However, due to musical disagreements, Shiki left that group to work behind the scenes at TSUKINO PRODUCTIONS. Encouraged by the company's president, Shiki aimed to form the best idol unit possible, leading to the creation of SolidS. Their music is composed by Shiki within the narrative, while their real-life music producer, post their debut album, is Akira Takizawa. One of the notable releases are "SEXY♂SENSE" and "Last Darling"(2024).
