An Arch-Demon that Thirteen fought during a mission gone wrong. Grythe is the demon whose death — at Thirteen’s hands — came at the cost of Thirteen’s entire squad, whose Souls Thirteen accidentally consumed in the process. This event led to Thirteen’s trial before the Solari Inquisition and his eventual induction into SABER.
“Where is the little light?” — Grythe, searching for the invisible, grief-stricken Thirteen on the empty battlefield.