The legend says that the Forbidden Fruit made the first two humans – Adam and Eve – intelligent, but what if it was the other way around? What if the Forbidden Fruit took most of their humility, their intelligence, their kindness, etc. away and turn them into the discriminating, angry, and hateful humans that they are? What if the only way to turn back into their former selves was to lead a good life on Earth to cleanse their souls?

The legend also says that Lilith was a demoness who fled from Heaven and was granted mercy when she showed humility and proved that her soul was still worthy of saving despite all her wrongdoings. What if, after centuries of sinning, Lilith finally found her way back to kindness? What if God forgave Lilith for her crimes? What if she gave birth to a baby after she had repented?

And what if that baby is the only human soul in existence that isn't tainted by the Forbidden Fruit or her past sins?

Tallitanya of Lilith inherited her mother's immortality and grew up at a rate much slower than an average human so she had witnessed the rise and fall of empires even though she is physically and mentally 21 years old. She was born on Earth, but she moved to Heaven when she was physically 5 years old and didn't return until she was 18 years old. She was tasked, by God himself, to guard over the Forbidden Tree which had since been replanted on an isolated island on Earth. She loves that job, and she loves that she was given direct instructions instead of having to figure out what God's so-called 'mysterious plans' for her was.

Centuries went by.

Tallitanya is 21 years old when the Final Judgement is nigh. As an immortal who has yet to have a real affiliation with Heaven or Hell, Tallitanya has received a personal invitation from the Antichrist who wishes to recruit Tallitanya. Heaven also sends its angel – Michael – to inform Tallitanya that as a human, her soul would also be judged by God. She was ordered to leave her post as the Forbidden Tree's guardian so that she could get to know the other humans before she makes an actual decision about who she wants to align herself with.

The second she steps out of the island, it disappears. Turns out, her message from God was faked, and so was her mission. The devil had tricked her, and as the guardian of the Forbidden Tree, she must recover the tree and the island, or humanity will perish within the year.