Wonder and Wonder represents a stylistic turning point where wowaka moved away from the digital production of his
Vocaloid career in favor of "music with a visible face" (顔が見える音楽,
kao ga mieru ongaku), emphasizing the physical performance of a live band. For the tracks "NONSENSE" and "Boatman," wowaka was initially influenced by MOSAIC.WAV and
Denpagumi.inc. The album addresses the contemporary trend of "fast-BPM" and "four-on-the-floor" dance rock in the Japanese music scene. While wowaka acknowledged his role (alongside artists like
Hachi) as a pioneer of this style, the band sought to subvert these tropes. ygarshy stated that they aimed to "deceive" the audience's expectations, such as using an 8-beat rhythm in "Imperfection" that mimics a dance beat, or placing an even kick drum in the 5/4 time signature of "5 Count Hello." Drummer Yumao emphasized that they wanted to provide "depth" to their sound to avoid the shallowness of simply playing fast. == Recording and packaging ==