Aqua is a blonde and is quite tall. He has blue Aquamarine eyes, which is what his mother named him after. He often changes his appearance due to his job as an actor. He is described as "handsome" and features a star in his right eye; symboling that he and is sister are one half of their mother. Due to him being Ai Hoshino's son, people point out their similarities, much to Aqua's dismay; wanting to keep things secretive about their relationship.