Woman in Black

The was a human that was used as a sacrifice for the Tabernacle, henceforth giving abundance to a part of the Chinese Peninsula and creating the Oasis.

Appearance
The woman has long dark hair and sclerae, as well as a smile that is regarded as demonic. She wears a cloak that is as black as night, which has a pointy hood and conceals her entire body except for her face.

Abilities
Being bitten by a Bug and turning into a Third Generation, she could expose her flames to individuals to prolong their lives and cure them of their hunger. Possessing the Ignition Ability Adolla Burst, she used its power to fuel the Shintai to give life to the Oasis. She can also establish an Adolla Link with another Adolla Burst wielder to grant them the for only one second.

Background
Having been bitten by the Preacher's bug, the Adolla Burst awoke in her, followed by the two woman coming to the Chinese Peninsula from the Tear in Space. Shortly after the Great Disaster, the woman appeared before animals, and taught them words while they waited for their inevitable death in the arid land. Informing Schop that she came to the land to recreate the world after the Tear in Space, she cured the animals of their hunger and prolonged their lives significantly. After creating the Shintai, the animals noticed she disappeared one day, after she willingly entered it. She used the energy generated from it to create the Oasis for the suffering animals. Due to the severity of her burns from being in the Shintai for two hundred and fifty years, the presence of Adolla within her grew stronger.

Chinese Peninsula arc
As a group of Fire Force members entered the Oasis, the woman told Shinra Kusakabe to protect the forest through the Adolla Link. Shortly after during Shinra's fight against Tempe, the woman told him again to protect the forest. Needing strength to defeat Tempeh, Shinra called out to the woman to receive Divine Protection, leading to her saying she cannot summon enough power to give to him. As Shinra continued to plead, she said she could give him Divine Protection for only one second, to which he accepted. Wondering what Shinra could do with only one second, the woman explained that she was the same as Shinra, and stated the purpose of the Preacher was to engulf the world in fire. Granting the power to Shinra, he immediately used it to kill Tempeh. Afterwards, she reveals her history and relationship with the Preacher to Shinra, before thanking him for saving the forest.

Trivia

 * The cloak that the woman wears in reminiscent of Death's, who is a character in Atsushi Ōkubo's manga Soul Eater.