Aika S. Granzchesta is a main character in Aria, a skilled apprentice Undine working for the Himeya Company on the planet Aqua. She is energetic, sharp-tongued, and highly competitive, often serving as a foil to Akari’s more gentle and optimistic personality. Despite her pride and occasional stubbornness, Aika is dedicated, hardworking, and deeply caring. Her role in the series is to grow as a professional gondolier while forming close friendships and experiencing the peaceful, reflective life of Neo-Venezia.