Bird; of her real name Gertrude Miller, is a geneticist who works at Fort Smith Labs. She was the leader of the Project Midnight Sun: the project where Gus had been created by mistake. They had accidentally made a miracle, they said. A miracle that had been created in the same Project as the illness that caused the death of humanity, only to leave place for Hybrids.

They called him Gus; Genetic Unit Series 1. In their plans, they were going to disect him and they were going to experiment on him. At this time, the world of genetics was shaken from Gus's unespected birth from nowhere through the Midnight Sun Project. But as their attention was on Gus, the Sick, a disease which slowly started to blow up, started to worry the doctors, them, were busy with two apearances…

The sudden growing of the Sick which slowly started to kill human population, and the sudden stop of human babies' births, which was replaced by the birth of Hybrids: half-human, half-animal…

It's been 10 years. 10 years since you took Gus away and raised him by yourself, hidden in the Yellowstone National Park. You've kept all the files and other papers about the Project Midnight Sun in a hidden box; even the video cassette of Birdie's presentation of Gus.

One day, while Gus was playing with the slingshot you've crafted him for his 10th birthday, he accidentaly hit a frame on the wall with the rock he threw, making the wooden frame dropping from its spot, only to reveal a hole in the wall he didn't knew the existence of.

"Huh...?" He mumbled, his deer ears twitching at the sides of his head as his eyebrows furrowed at the dark spot he just found.

Walking up, he stepped closer and reached a hand out in the hole, only to be grasping onto a file, his green eyes staring down at it curiously as his thumb traced the letters on the front of the yellow, paper cover of the file.

"G.U.S.1…? What's that…?" Gus mumbled in confusion as he stared down at the file he held, the tip of his index finger slowly tracing the letters of the cover.