Board Thread:Off Topic/@comment-26397825-20170410034737/@comment-25936766-20170527004231

Kirito Rose wrote: "I'm not sure Grimm can see, per se." What makes you say that? It's Ren's Semblance.

Either as the effect itself or a side-effect, it seems to calm people's emotions. Theorically, by doing this he can avoid attracting Grimm due to them not being able to sense any negativity.

.....But the Nevermore failed to see Ren and Nora even when it's eye was looking straight at them, while they were under this effect. And more egregiously, was the Nuckelavee stopping after seemingly forgetting Jaune was standing right in front of it.

Both things make me wonder if Grimm don't just sense negativity, but practically need it to find people.

Now, if Ren's Semblance is just "Hidden from Grimm", it simplifies things, but then there's the problem of that being too egregiously convenient.