Reiuji's first appearance was in Touhou 11 the Subterranean Animism as the final boss.
Utsuho Reiuji 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.
Utsuho Reiuji (Nickname "Okuu") is a Hell Raven with the ability to manipulate nuclear fusion. In Subterranean Animism, she uses her powers for the fitting purpose of conquering the world or at least that was her plan until Reimu thwarted her schemes and put her in her place. Interestingly, Utsuho marks the first antagonist in the Touhou series to lack an ulterior motive of some sort, making her an actual villain. Utsuho is a tad on the stupid side which is chilling, considering the kind of raw destructive power she has control over.
Before the events of Subterranean Animism, she was told by a voice(most likely Kanako's) that she could swallow the god named Yatagarasu, that was hidden in the flames to gain a power that would fulfil 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, Orin, 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, the plan was to defeat Utsuho and bring her back to her former self. What came, however, was not a strong youkai, but a strong human.
While testing her new found power's, Reiuji created a geyser which wound up blowing Byakuren's Palanquin Ship out from the underground and into the sky, starting the plot of that game.
Long raven-dark brown 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 weapon known as the "Third Leg", which appears to center the power of the devices on her legs (A control rod that by most fans have been called her arm cannon). 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 Leg of Fission). Her left foot is being orbited by atoms(her Leg of Fusion).
Page modified by Josiah Zamudio, May 30, 2014