blog ranking every meal in Dungeon Meshi by what dietary restrictions it fulfills (vegetarian, kosher, low-fodmap, nut allergies, etc)
"Is The Living Armor Kosher," the greatest thread in history, locked after 1000000 comments,
well, that's the thing: it's a land shellfish. the kosher rule forbidding shellfish (iirc) is specifically about the fact that it's a creature of the water without fins or scales
unfortunately bugs are also not allowed (unless they are one of four specific kinds of locusts, and we're not sure which locusts those are) so I think living armor is not kosher