Yuki Kaida is a Japanese singer and voice actress who has contributed music to anime soundtracks. Her work as a musical artist is closely tied to the characters she has portrayed, often performing character songs and theme music for the series in which she appears.

One of her notable anime music credits is for the supernatural series Shonen Onmyoji. While the opening theme for the series is Egao no Wake by Kaori Hikita and the primary ending theme is Yakusoku by Saori Kiuji, Kaida performed the song Roku Tousei, which was used as a special ending theme for the final episode of the series.

Beyond theme songs, Kaida has participated in character song albums related to her anime roles. For Shonen Onmyoji, she contributed to a character song mini-album titled Shonen Onmyoji Character Song Kacho Fugetsu Zangetsu, released on July 6, 2007. This release includes a duet alongside fellow voice actor Katsuyuki Konishi.

Kaida has also performed music for the long-running sports anime The Prince of Tennis, in which she voices the character Shusuke Fuji. Her character songs for this series include tracks such as Feel My Soul and The Ache of My Heart. Another significant area of her music work is for the franchise Hetalia: Axis Powers, where she voices the character China. For this role, she has performed several character image songs, including Marukaite Chikyuu (China Version), Aiyah, 4000 Years~, and Nihao★China. Her musical output primarily consists of these character-driven singles and album tracks rather than standalone solo albums as a primary artist.