He lands on the roof as well, and is very nearly knocked off of it again by that blast. It's a huge burst of energy, and when he's done stepping back to keep from falling over, he's right at the edge of the roof. But that's as far as it goes. Anyone else, and it might have frozen them in place, but not Ankh.

For a second, he's concerned that maybe Eiji still has the energy to fly, and maybe he could have already escaped while Ankh was recovering, but he's still standing there in front of him. He steps forward again, though he's not planning to attack unless Eiji gives him reason to. As far as he can tell, the other is finally at his limit.