Icy is right though, grim/soul skill immune characters can, under certain conditions, be stripped of their immunity, and moving the field is the currently only known case of this, because it would mess up the field.
See
here and
here.
It is, in Logress' words, unavoidable that she gets moved, but she shouldn't engage. (It's also "Engage all units of Lv4 and
higher")

"Abandon all hope, ye who enter here" - Inscription above the gates of Alteil
Romdeau wrote:I don't have much else to say to you other than you live in your own world if you believe I have active enemies around Alteil besides from Demongod.