Yozakura Quartet Hoshi no Umi (lit. Yozakura Quartet Sea of Stars) is a series of OVAs released covering the Hoshi no Umi arc of the manga. Hoshi no Umi consists of three DVDs that was released between Oct. 8, 2010 and Nov. 9, 2011 together with manga volumes 9, 10, and 11.