Movies Like Cosmic Princess Kaguya!

Virtual world idol singer + anime + music genre; near-identical premise of performing in an online alternate reality

Anime sci-fantasy with a teenage girl protagonist and time travel; same light, energetic tone and coming-of-age heart

Anime sci-fi with time travel as central mechanic; shares science-fantasy tone and emotional character focus

Anime with virtual world and time travel; two people navigating a constructed alternate reality together

Stars Saori Hayami and Miyu Irino (two of source's leads); emotional anime with strong female-male duo dynamic

Anime romance with time travel and parallel worlds; science-fantasy framing around two young people performing/living together

Companion film to above; same time-travel/parallel-world anime romance premise, overlapping cast

Anime sci-fantasy with a girl crossing between real and virtual-like dream worlds; moon/princess coding in the source echoed here

Classic anime fantasy about a girl transported to a parallel magical realm; shares whimsy and self-discovery arc; stars Miyu Irino

Anime fantasy with a strong-willed young woman and a flamboyant magical figure; romantic undertones and sci-fantasy world-building

Anime sci-fi set in a constructed alternate psychic/virtual world; vibrant visuals and boundary-blurring reality share DNA with source

Anime sci-fi with parallel worlds and a young duo at the center; similar intimate scale and science-fantasy framing

Anime with virtual world MMORPG setting; shares Yoshitsugu Matsuoka and the virtual-performance-as-identity theme

Anime idol singer at the heart of a sci-fi space adventure; music-as-weapon/connection theme is the closest structural match to source

Anime music film about a girl who finds her voice through performance; emotional coming-of-age with a virtual/fantastical framing

Recent anime about a girl experiencing color as music; fantasy + music + youthful self-discovery closely mirrors source's tone

Anime romance centered on music and performance between two teenagers; light sci-fantasy aesthetic and idol-adjacent setting

Landmark anime with a courageous princess protagonist; thematic princess archetype overlaps even though genre and era differ

Modern anime fantasy with two young people adrift in a supernatural space; slice-of-life warmth and sci-fantasy mystery echo source

High-energy Trigger anime sci-fi with flamboyant visuals and a bold, performative protagonist energy matching source's idol tone