And the Dragon Descendant Sava is an immensely important part of the early stage of the plan.
She might contribute in some way to the people living on this land in the future, but compared to the negative impact caused by her betrayal...
It is absolutely necessary to nip such a traitor in the bud.
Time is limited, and I don't have the energy to study her mental journey thoroughly, to figure out if Sava had always harbored betrayal in her heart, and her acts of kindness in the early disaster were just to confuse those strong individuals, using the resources of the Alliance to grow quickly; or if there was some other reason for her betrayal later on.
With a mission heavy enough to crush a steel-like will, Vier could not consider so much, and everything was based on the principle of efficiency first.
