Ai Hoshino became pregnant with twins Aquamarine and Ruby, when she was very young. In order not to ruin her reputation, she and her team decided to hide her pregnancy and motherhood. Thus, Ai Hoshino had to combine her idol work with taking care of her children who she love a mot. Ai is happy, loving, caring and smiling, she is also insecure and a liar. Ai lacked any memories of having loved or ever been loved, something that was shown when Ichigo Saitou, who searched for idols.