Escort Milia's Servant.
If you fail to escort her safely, abandon the quest and then talk to Milia's Servant to reacquire it.

Show Quest Info

Introduction

Just as Milia's Guard had done, Milia's Servant suddenly began to move.
Your curiosity drives you to see what will happen when the two are finally reunited

NPC Dialog

Are you the hero I am waiting for?

Quest Completion

Milia's Servant and Guard catch you completely off
guard as they unleash their surprisingly immense
power. After the ritual, all is quiet again and the
path is open.