The character Rainbow Ice Cream Anpanman appears solely in the voice cast credits for *Soreike! Anpanman Kirameke! Ice no Kuni no Vanilla-Hime*. No details exist regarding this character’s origins, narrative purpose, or development across any official Anpanman media, including seasons, films, OVAs, or spin-offs. Plot summaries for the film center exclusively on Princess Vanilla, Bacteriaman's robot, and Anpanman's mission to protect Ice Cream Land, with no mention of Rainbow Ice Cream Anpanman’s actions or significance. Broader franchise overviews similarly omit any reference to this character.