OVA of Maken-ki! Announced

According to Amazon Japan, an OVA of Maken-Ki! will be bundled with the limited edition of the eight volume of the manga. It will be released on March 1st, 2012.

Trailer of Maken-ki TV Anime
Maken-ki anime official website

The TV series will start this October.

Source: Amazon Japan

Maken-Ki! OVA on MAL