Since their striking record debut in 1979, Casiopea has led the Japanese fusion scene as one of it's representative super bands, creating a completely new musical style by combining approachable melodies born from Issei Noro's exceptional compositional sense with thrilling speed and superlative technical performance, producing enduring classics such as ASAYAKE and DOMINO LINE, and maintaining their reputation through multiple eras including the first phase from 1977 to 1989, the second phase from 1990 to 2006, and the third phase beginning in 2012 as Casiopea 3rd following a six year hiatus, then entering a fourth phase as Casiopea P4 from 2022 to 2024 with the transition of drums from Akira Jimbo to Yoshinori Imai, before welcoming Jun Abe in May 2025 and returning to the original name Casiopea to mark the fifth phase; this release fully captures all 20 songs performed at the emotionally charged final show of the commemorative fifth phase kickoff tour Casiopea Summer Tour 2025 TRUE BLUE, held at CLUB CITTA' on September 11, 2025, following the highly acclaimed NEW MEMBER's GIG 2025 tour at Billboard Live Osaka, Tokyo, and Yokohama, and is presented in high quality Blu-spec CD2 format for fans and collectors.