You know, what would hearing protection for that kind of ear look like? If you have cat ears you’re hearing is going to be extra sensitive and harder to protect. Would it involve some kind of helmet that holds flat against your head? I don’t think the same kind of ear plugs that humans use would work for you. And like, if you’re in combat you need to be able to hear stuff.

I don’t even want to think about how gnarly the tinnitus would be from shooting a gun with feline ears. This illustration literally shows ballistic ear protection for the ears, but not the real ears.

The character design would fit into Arknights seamlessly