So that's Nudist Beach way of fighting eh?
I guess on the plus side Tsumugu is in no danger of getting overshadowed by any of them.
Seriously though, if the whole idea of Nudist Teacher being Satsuki's father is true, i guess this could be a joke about him having no clue how to proper lead an organization or develop fighting equipment to contrast his ex-wife and daughter.
I think the fact that Satsuki knew exactly who he was the whole time and didn't give a fuck should have blown that theory out of the water. What's weird now though is that Aikuro acted like he could have stopped Ryuko and Satsuki's battle way back in episode 3 but now he has to fight in these useless leg things that barely put him at a normal student's level.
Well... he's using metal gears to fight them, give him some credit.