The "Scorching, Troublesome Divine Flame". Final boss of Touhou's Subterranean Animism and later a playable character in Hisoutensoku. Has the power to manipulate nuclear fusion. Her nickname is "Okuu" (おくう), which is based on an alternate reading of the kanji in her name.
Utsuho is a hell raven who has absorbed the powers of a yatagarasu. This new power, however, drove her on an ambitious yet naive pursuit - to conquer the surface world and turn it into a part of the Hell of Blazing Fires - forcing her friend Kaenbyou Rin to send evil spirits above to warn anyone of her threat. Both Reiuji and Rin are pets of Komeiji Satori.
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 as such she is often associated with nuclear weapon.
