For the Only Two of Their Kind in the World

is the 13th and final episode of Granbelm.

Synopsis
GRANBELM is finally down to two participants. Their mechs surpass their own limits, but eventually they can no longer withstand the impact sustained during the battle, and their functions begin to fail. When Shingetsu's situation grows dire, she's surprised by the appearance of Mangetsu, who was supposed to have disappeared.