Su Chen, once the architect of the virtual world "Floating World" and now a single father, in order to create a complete world for his daughter Su Nian, who suffers from a rare "sympathy deficiency", he hid all the glory and pain of the past and lived a poor and peaceful life at the bottom of the steel jungle.
However, when his daughter's wish list pointed to the virtual reality he created and decided not to leave - "The Floating World", Su Chen had to put on the dusty neural access helmet and use the pseudonym "Echo" to return to that dreamy place where data and code were intertwined. He just wants to play a lullaby that belongs only to him and his daughter on an old acoustic guitar in the corner of the virtual world, and earn a small bounty.
He never thought that this "Star Lullaby" soaked in love and memory would actually cause a storm in the "floating world". His music is known as "melody that can repair the soul", attracting countless followers, and also attracted the attention of the most mysterious music queen in "The Floating World", "Zero"
One is the former king who returns for love, and the other is the mysterious queen who rules the virtual music world. In the intertwined flow of notes and data, Su Chen not only had to face the oppression from reality, but also uncovered the truth about the "data collapse" incident that led to the separation of his wife and children five years ago. The clues to the truth seem to be hidden behind the identity of "Zero" and the illness of his daughter Su Nianyi.
This is a story about protection, redemption and rebirth. At the junction of reality and virtuality, he will use music as a weapon to fight against the huge monster of capital, heal his broken soul, and play a legend across dimensions for the two most important girls in his life.
