Lol they cant eat him because his blood is poisonous. Sir Mugo did something in the earlier chapters clxudll
Technically he can harm himself, they just can’t harm him. If he wanted to slit his wrist so that monster mugo can use him like a sippy cup, that’s absolutely acceptable by the rules of the protection curse placed on him.
Saw that coming . I feel like I would just give him some blood. But this is… another way