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Name: Utsuho Reiuji

Nickname: Okuu

Species: Hell raven, yatagarasu

Abilities: Manipulation of Nuclear Fusion

Age: Unknown

Occupation: Regulator of the flames in the former Hell of Blazing Fires

Location: The former Hell of Blazing Fires

Description: Long raven-black hair. Wears a white short-sleeved shirt with a red "eye" in the center, a short green skirt, and a green hair-ribbon. On her right arm, she wears a device known as the "Third Leg", which appears to regulate the power of the devices on her legs (aka a control rod). She wears a cape that's white on the outside and a starry pattern on the inside; the cape is kept aloft by her black wings. Her right foot is encased in congealed matter, representing the "elephant's foot" of Chernobyl. Her left foot is being orbited by atoms
Utsuho is one of Satori's pets, a Hell raven who has lived in the underground world since before it was separated from Hell. Her job is to regulate the flames of the Hell of Blazing Fires. Before the events of Subterranean Animism, she was told by a voice (presumably Kanako Yasaka's) that she could swallow the god, Yatagarasu, that was hidden in the flames to gain a power that would fulfill the wishes of both the worlds below and above the surface. This power was nuclear fusion. Utsuho misunderstood what the voice had told her, and decided that, using these powers, she would take over Gensokyo. Her friend, Rin Kaenbyou, became worried about Utsuho, and drove evil spirits to the surface to cause an incident among the strong youkai above ground, in hope that they would come down to do something about it and, when they got there, defeat Utsuho and bring her back to her former self. What came, however, was not a strong youkai, but a strong human