Ayumi Miyama (美山 あゆみ Miyama Ayumi?) is the daughter of Sakiko Miyama and younger sister of Izumi Miyama. She acts as a younger sister to Tooru after Kaoru's death. Her mother took Gen and Tooru in after Silver Bloome's attack, and so she joined the recurring cast.
When she noticed Gen and Tooru were missing during Black End's assault, she led the other children in a search. She organized them so they could attack Black Directive, saving Tooru and Gen in the process.