[quote=@Toots]
[@Delta44] The quirk is interesting, but kinda curious on how Munch functions. I get that it has a mouth, so aside from biting and chewing, can it speak, lick, spit, etc? Is it able to swallow? If so, where would it go? You mentioned that it can sense for itself, so dDoes it have eyes or capable of smelling and tasting? The rest of its capabilities seem nerfable, but I'm leaning towards letting them slide. Being able to move Munch to her limbs sounds like a good upgrade; just find a way to make sense of how she'd actually learn to do it.
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Info dump, sorry!

Munch can eat from his current position, as his throat will avoid her head entirely and simply connect with hers. It's not overly large or anything though, so he can't start swallowing watermelons to recover their stamina, especially since it would block in Tohka's neck c: He can lick and has vocal chords to communicate, but can't form words, only grunts, barks, roars, that kind of thing. As for other parts, he doesn't have any kind of sense organ, like eyes or a nose, but has a sense of touch and taste. As for letting him move to other limbs, I always imagined it like a restructuring of his keratin shell, breaking them down into cells and reforming through Tohka's skin elsewhere. Like nanomachines breaking down and reforming, but with cells. I imagine the scientific way this would happen would be either transporting these bits through her blood vessels or along her skin, then deconstructing the end of her other limb and using it to reform himself. Kinda morbid, so it would likely be unlocked in a moment of trauma or extreme stress rather than training, which you could work into the story if you have something like that in mind (TOURNAMENT ARRRRRC? baddies?). Since Munch is a parasitic quirk, I always thought he had his own brain inside of Tohka's body with a body that is external to protect both himself and his host from danger, in which case it would make sense for him to be able to deconstruct himself.