Porto is a coal miner who works in a mine owned by the Slovatik Corporation.

The coal mines became a site of a mysterious disaster. Supernatural entities called "the fires of the earth", erupted from the coal mines, which resulted in the death, disappearance or otherwise possession of the mine's workers & machinery.

Porto herself is the only survivor, but also inhaled an invisible entity called Ghast. Her inhaling Ghast grants her height changing abilities.

Porto awakens in the dark with wounds in her elbows, confused, & she seeks a way out.

Porto is a young woman with long black hair, & she wears a blouse, skirt & shoes.

Not only can she change her height thanks to Ghast, but she also has knowledge on lock picking, electronics & mining.