Moro is a background character mentioned in Fire Emblem Fates.
Moro is an Astral Dragon and he is one of the First Dragons. At the end of Chapter 3, he granted Lilith's power to transform into an Astral Dragon in order to save the Avatar and gave her the ability to travel the Astral Realm. Towards the end of Birthright and Conquest, Lilith is fatally wounded, while dying she is restored to her human form. Lilith speculates that Moro took pity on her in her final moments.