Miyuki, Kayō Asakura's cousin, trained as a miko at Ōyama before becoming entangled in the Hybrid's schemes. The Hybrid possessed her, utilizing Miyuki to locate and capture Kayō.
In the spin-off "Demon Beast Resurrection," Miyuki commands a demon beast cult focused on resurrecting the Hybrid. As its leader, she orchestrates the cult's efforts to recover Kayō for the vital ritual. To secure Kayō, Miyuki directs her minion, "The Mailman," to carry out the kidnapping. She also relies on her loyal female subordinate, known as "The Slave."