Black Tessaiga

 or Kuroi Tessaiga as it's more commonly known, is the only InuYasha OVA. It was shown on July 30, 2008 in Japan as a 30-minute InuYasha feature titled Kuroi Tessaiga screened on Rumiko Takahashi's picture exhibitions across Japan.

In January 2010, this special ended up, slightly edited, as episode 15 of InuYasha: The Final Act.

黑色鐵碎牙