One day in 2050, a substance called "Meteor Snake" was observed in the universe - the ripples caused by the battle between two civilizations - cutting the earth into several pieces. Before disaster strikes, 95% of humanity is forced to take refuge in underground cities. After a hundred years of the Passion, the descendants of the humans who survived by relying on money and resources finally ushered in the dawn. Humanity has tried its best to light up the technology tree of self-rescue, which can recombine the fragments of the earth torn apart by the "Meteor Snake", which is called "Project Qingtian". However, the selfishness of a few people has divided the unity of the four continents and ruined the future of mankind. After the victor ascended the throne, he immediately erased this history and indoctrinated the people to regard the other three continents as mortal enemies, and only those who were loyal to the God-King could receive protection.
One day in 2203, the protagonists Soyo and Archie picked up a mysterious substance, disappeared accidentally, and separated from Delilah. All three children were orphans adopted from the Sophia Orphanage. On the day when the two boys turned 14, recruiters broke in. On the same day, the boys disappeared mysteriously. Angry officials took away their sister, Delilah, and their grandfather, Mohr. Unexpectedly, when the two came back, they had become the "original special ability users" who saved the people and even all mankind, also known as "Shirlo" - the legendary hero who means "rescue". When Sirlo appears, the city will surely usher in strife and killing.
No matter how cruel the world is, love is the eternal driving force for human progress. One day, these gentle and loyal friends will find their families, join hands with all mankind to restart the "Qingtian Project", and complete their mission.