i tested the corner combo to see if works against the rest of the cast. The combo works on Warachia, Ciel, Nero, Riesbife, Len, Aoko, Ryougi, Akiha, Nanaya, Tohno, Neco-Arc-Chaos, Neco-Arc and Seifuyu Akiha. But it doesn't seem to work on the other characters, if someone can confirm this, that would be very good, i am sure you can find a diferent combo setup to use against the other characters.
By the way SilentShinobi, the combo you display in the video, only works if you start with a counter?, can you do it without catching the oponent in midair?.