OVA 1: An old journal is found by Levi and Erwin when they conduct the surveillance operation outside the wall. The contents of "Ilse's Journal" result in some unexpected actions from Hange.


OVA 2: Another story of the 104th Trainee Squad.


OVA 3: Will depict a "memorable episode before the 104th Training Corps became unified."



(Source: Anime News Network)