The Names of Sora and Aiko

Sora Haruno: Have you guys heard the name "Sora" as a unisex name? In the Vocaloid team, I am the only one with blonde hair and blue eyes and I come in different styles.

Sora Suiga: But of all the UTAUs, there are some who have the same first name, but their last names are different, like me, Suiga.