reiuji utsuho
The "Scorching, Troublesome Divine Flame". Final boss of Touhou's Subterranean Animism and later a playable character in Hisoutensoku. A hell raven who absorbed the powers of a yatagarasu, giving her the power to manipulate nuclear fusion which she then used to try to conquer the surface. Her nickname is "Okuu" (おくう), which is based on an alternate reading of the kanji in her name. Both Reiuji and Kaenbyou Rin are pets of Komeiji Satori and live in Chireiden.
Her (fan-given) catchprase is 'Unyu'; she is also known as ⑥ because, like Cirno (whose nickname is ⑨), she is rather dumb and the strongest of the Former Hell, only difference is, she actually is strong. "⑥" also reflects her status as a Stage 6 boss, and the notion of her heat-based powers being the inverse of Cirno and her ice abilities.
Her spellcards are announced with a highly visible radiation symbol and while pointing up towards the black sun, often while holding her arm cannon based on a control rod.
Appearance
She has long black or brown hair tied with a green hair bow and red eyes, including her third eye on her chest. Her outfit is a collared white shirt with puffy short sleeves and sometimes frills on the bottom and the collar, a frilled green skirt, a white cape with a starry print on the reverse side over her black wings, black socks, and brown loafers.