Granzchesta, Aika S.

藍華・S・グランチェスタ

Aika, the first friend Akari made on Aqua, is an undine for Himeya, the oldest and currently second-ranking water-guide company in Neo-Venezia. As the sole daughter of its owners, she is also Himeya's heir, but she does not enjoy the distinction much, feeling that the company's employees fawn over her too much.
Aika often speaks in an open and blunt manner, and goes out of her way to cut off Akari's many idealistic comments with a preemptive "Embarrassing remarks are not allowed!" (Hazukashii serifu kinshi!). Despite their contrasting personalities, she gets along quite well with Akari, and later with Alice. She is very proud of her undine abilities and tends to be very competitive in this aspect. She also worships Alicia, finding any excuse to go over to Aria company and spend time with her. Aika once said that if it were not for her obligation to her family, she would join Aria company. Aika has feelings for Al.