Emilia (Rumi Ookubo) & Sakura (Mayu Yoshioka) is a Japanese duo credit used for releases credited under both performers rather than as a standalone solo act. The entry matters for anime music listeners because the name appears exactly as printed on song and album credits, making it easier to find releases that use this joint billing. It is also a useful search point for alternate forms such as Sakura / Mayu Yoshioka and Sakura Mayu.
The credit is anchored by Rumi Ookubo, who was born on 27 September 1989 in Saitama, Japan. Her wider anime profile also helps place the collaboration in context: recent cast announcements have included Magic Knight Rayearth and Mayonaka Heart Tune. Together, these details make the page useful for cataloging the exact artist string while connecting it to the broader anime and anison scene.
