The official website for the anime series "Yozakura Quartet: Hana no Uta
" has announced that the spin-off manga "Yoza-Quar!" will be getting a six episode anime short adaptation. The spin-off manga is a series of additions to the endings of each volume of the original manga
One episode will be included in each of the six Blu-ray/DVD volumes of "Yozakura Quartet: Hana no Uta" which began airing this month. The first volume of the Blu-ray/DVD is expected to be released on December 18, 2013.
Source: Official anime website
Yozakura Quartet: Yoza-Quar!