"Pajamas"

Actually, they're specially made...so he can wear them over his armour. :) Because..............I really don't think bits of his armour comes off (like the chest piece, that looks like a mouth with a giant eyeball inside.......)! XD

Now that I've acquired the D5 artbook...........I can finally start doing more accurate art of these guys, I'm really off on the Devil Knight's armour! XD