Yozakura Quartet: Hoshi no Umi
Genres: Action, Comedy, Supernatural
Type: OVA, Episodes: 3
Aired: Oct 8, 2010 to Nov 9, 2011
Studio: Tatsunoko Production, Purple Cow Studio Japan
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
An OVA based on the Hoshi no Umi arc of the manga spanning chapters 26-34. 

This arc focuses on Rin Azuma, a Jiang-Shi yokai resident of Sakurashin adjusting to her new life in the city and working for a ramen shop. One day her former friend Zakuro Kurumaki invades Sakurashin to capture Rin and convince her to join her in destroying the city with the other yokai hunters as well as Enjin Hiizumi, the main antagonist of the series. Akina Hiizumi and the other members of the Hiizumi Life Counseling Office take action to save Rin, 'tune' the yokai controlling Zakuro and protect the city.

(Source: ANN)