So like. What would be the effects if Ain used the void taint in his body on the walls/the octopus ayakashi to try and break them down, once he's inside the compound? The void energy encourages accelerated entropy and corruption, kind of like what strong acid does to physical objects. He's in control of the void taint (as opposed to Add who was not in control of if during the void event) so he will be able to direct it properly.