At the edge of the Milky Way, on Waste Saturn 7, there lives a man named Ling Feng. His only identity is that of a former interstellar scavenger and the father of a four-year-old girl, Nono. On this forgotten metal planet, he used the parts he found to make toys for his daughter, fed her with the crudest nutritional paste, and lived a peaceful life without fighting against the world.
No one knows that this taciturn, slightly clumsy man was once the sharpest sword in the Sky Empire and the ace pilot codenamed "Guisu". He disappeared in the "Battle of the Abyss" three years ago and was declared dead by the empire. No one knew that the smiling little girl in his arms, whose eyes occasionally flashed with data, was the ultimate legacy of an ancient civilization and the "key" that the entire universe was looking for.
When greedy eyes penetrate the stardust and fall on their father and daughter, when the iron hoof of the empire and the shadow of the old enemy are approaching again. Ling Feng knew that the peaceful days were over.
In order to protect his only treasure, he must regain his forgotten identity.
When the dusty memory wakes up, when the rusty iron fist is clenched again, the whole star sea will tremble.
"I fought for the empire, I fought for honor, now I only fight for my daughter."
——Ling Feng
