Yozakura Quartet ~Hoshi no Umi~

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.

Episode 1
Rin got possessed by an unknown force that puts her in danger and harming others in the process.

Episode 2
Zakuro mind-control Rin to beat up Hime and her friends.