Hikaru Kamiki

"Ruby Hoshino, you have grown into a beautiful woman. Of course she would, since she's our kid."

- Aqua and Ruby's father

Aqua and Ruby's father is a man that fathered Aquamarine Hoshino and Ruby Hoshino with Ai Hoshino. It has been implied that he has a role in the death of Ai, since he was informed of her address, which was supposed to be a secret not even her company president Ichigo Saitou knew about, shortly before she was murdered.

Known Facts

 * He is referred by Ai Hoshino as "(her) ex", and she later referred to how their children would understand "(their) situation", implying that the relationship between them were mutually broken off.
 * He is implied to have fathered Taiki Himekawa with the married Airi Himekawa secretly.