According to Kadokawa, an OVA of Dantalian no Shoka will be bundled with the ninth volume of the novel. It will be released in January 2012. The first episode of the TV series will be aired on July 15th.
Dantalian anime official website
According to Kadokawa, an OVA of R-15 will be bundled with the tenth volume of the novel. It will be released in December. The first episode of the TV series will be aired on July 9th.
R-15 anime official website
Sources: Kadokawa, Kadokawa
Dantalian no Shoka OVA on MAL The OVA has been canceled.
R-15 OVA on MAL
