I

Zero, the guardian of the Babel Tower, was first introduced to the members of Eme-an by former director Cosmos. Cosmos announced that he had adopted her, and she would take over his duties in the future, leading the world's oldest secret alliance.
Her name, like her past, is "Zero" — void. Eme-an could not find anyone related to her, and even in the Babel Library, which contains all the information in the world, there was no trace of her background. This sparked many speculations and discussions. However, Cosmos, gentle as always, refused to answer any questions this time, and Zero stayed in the Babel Tower, rarely stepping into the outside world. This mysterious girl gradually took over many of Eme-an's tasks, her calm and efficient manner making her an increasingly competent assistant to the director. Until Seer arrived, no one doubted that she was the next spokesperson for the mouthpieces of the gods.
All her past records were as blank as fresh snow, and even her birthday was only temporarily set as the day she arrived at the tower.
However, if there were an opportunity in the future, why not write new stories on her blank slate?