Translated as "Subordinate Healing," Ayu (神魔・亜癒?) is a hedgehog-like Shinma that appeared in the form of Mayumi Takahashi. She can launch quills from her hair and launch her claws.

Ayu happened to have known Miyu for some time and has been living with a man named Kyoichi Yaguchi while working at a gas station. When she accidentally killed Yaguchi's wife, she and Yaguchi fled. Miyu caught up with them with hopes of returning Mayumi to "The Darkness." Since Yaguchi doesn't want to lose her, Mayumi ended up fighting Miyu and Mayumi's true form is revealed. Larva appeared to protect Miyu from Ayu's quill attack and Miyu told him not to interfere after Ayu's attack. Miyu eventually returned Ayu to "The Darkness" as Ayu says goodbye to Yaguchi.

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