Board Thread:Manga/@comment-26495049-20161117013314/@comment-24593592-20170714053407

Danieck117 wrote: the Ackermans (by-product of Titan Science, not true Eldian) are not of Eldian Descent, thats why the coordinate didn't work on them.

Just because the coordinate doesn't work on them doesn't necessarily mean they can't be turn into Titans. Their inherit special abilities deriving from Titans would imply they have some kind of genetic relation with Eldians. Their immunity to to the coordinate might also be the result of science.

We need more context about them.