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.
ＤＶＤ付き「夜桜四重奏」（11）限定版 PV
DVD付き「夜桜四重奏」（１０） 限定版 ロングバージョンPV
DVD付き限定版『夜桜四重奏』第9巻 『夜桜四重奏～ホシノウミ～』PV
