ULTRA-PRISM with Ika Musume is a Japanese j-pop anime music project formed in 2009 and associated with theme songs for anime series. The group consists of Masaya Koike (小池雅也) and Usagi Tsukimiya (月宮うさぎ), and has released music through Lantis.
For Shinryaku! Ika Musume, the opening theme is "Let's Invade!" (侵略ノススメ☆ Shinryaku no Susume☆?) by ULTRA-PRISM with Hisako Kanemoto. This credit is one of the group’s most recognizable anime tie-ins and helped define its presence in the anime music scene.
The group also contributed to Softenni, which featured two songs in its theme lineup: the opening theme "るーるぶっくを忘れちゃえ?" (Softenni) by Ultra-Prism with Shiratama-chū Soft Tennis Club, and the ending theme "Tsumasakidachi" (つまさきだち?) by Kanae Itō. These credits show the project’s involvement in anime productions through both collaborative and character-linked performances.
Another notable contribution is the ending theme for Rio: Rainbow Gate!, "Miracle☆Chance" (みらくる☆ちゃんす Mirakuru Chansu?) by ULTRA-PRISM. CD singles for the songs were released on January 26, 2011 by Universal Music, further documenting the group’s activity around that period.
