Shakugan no Shana Vol 5 pg 119

Alastor opened his mouth.
“…My Flame Haze, the Flame-Haired, Burning-Eyed Hunter, has a secret. A secret art that
allows me to manifest without relying on the Power of Existence of humans in this world, but
by using the lives of other Denizens of the Crimson World as a sacrifice… the Heaven’s
Ruin, a secret art permitted only to me, a true demon god of the Crimson World…”
Another explosion.
After a sharp intake of breath, a voice that had suppressed a scream, the girl asked the
crucial question.
“Tch—That destroys the vessel, the Flame Haze, as well, doesn’t it?”
Alastor, who knew the girl’s sharpness, was not surprised. He just quietly affirmed it.
“Yes… It became so.”
“…”
She had heard it several times in the past. Heard it by some chance.
About the previous contractor, the former Flame-Haired, Burning-Eyed Hunter. About her
magnificence, her splendor.
She could tell just from the way they spoke that Alastor and Wilhelmina had loved her dearly.