Wadanohara and the Great Blue Sea

Overview

The young witch Wadanohara has just returned from a journey across the oceans, searching for a clue to mysteriously lost memories. But now that she has come home, Wadanohara must begin a new quest to ensure the safety of the ocean kingdom she hails from, along with her familiars Memoca, Dolphi and Fukami. When a mysterious figure from her past appears and demands that she leave her ocean home forever, will it be enough to stop Wadanohara from upholding a family legacy to save her world from an invading force? (Source: Seven Seas Entertainment)

Source: AniList