While further expanding the alternative/post-rock context, "Cocoon" is a masterpiece that foretells a new development for Ai Kamano. The pursuit of alternative pop that was advocated in HUMAN was carried over to songs such as "kaiki" and "sanagi," which expanded the context of post-rock and alternative. In addition, the song ``Prelude'', which has a clear approach to classical and contemporary music, which is one of Kamano's roots, shows Kamano's new guidelines. From the oppressive electronic sounds of "Ghost Grace" to the poetry of "Karte", Kamano's various approaches transcended the realm of experimentation and became his own new means of expression. While he continues to release works that explore the possibilities of the voice, his overall track make-up, which is closer to recent pop music, is also a must-listen. This is a masterpiece that foretells new developments in the future.