霊烏路 空 (れいうじ うつほ)
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).
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.
Her spellcards are announced with a highly visible radiation symbol.
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