The sky in District 7 is eternal lead gray. In the filth of "Rust Alley" and the suffering of the people of the Abyss, Lin Mo guarded the only glimmer of light - his cousin Jia. Her silver hair is like the moon, and her iris-colored eyes are so pure that they are not stained by dust. They work for the "World Tree Organization" that fights against the erosion of the abyss, and struggle to survive in the steel city where technology and magic are intertwined.
When the first demon king "Reincarnation" awakened in the darkness, the resonance between Lin Mo's body and the World Tree pushed him onto the fateful path of hunting the twelve demon kings. Every time he absorbs a piece of the Demon King's power, he gets closer to his mission of ending the world's endless reincarnation, and slides deeper into the abyss of power. The teammates around him: the elegant and mysterious time warlock Sitdog, Sitkaya who has a fierce obsession with her brother, the space genius Lingyi... Their respective love and hate are intertwined in the shadows.
Jia accompanied Lin Mo quietly. When he witnessed the suffering on the verge of losing control, her cold fingers would gently hold his wrist, and her sweet voice could always soothe his restless magic power in time. When he is in dire straits, an unexpected patrol intervention and a slight mistake by his opponent can always turn the situation around. Lin Mo regards her as his salvation in troubled times and her only anchor and warmth on his bloody journey. He never delved into where those just-right "lucks" came from.
It wasn't until the lost memory fragments revealed the explosion in the laboratory, until the "love" that was forcibly stripped away turned into a twisted demon king pouring out hatred towards him, until time went back, space tore apart, and the fire of destruction burned everything... Only then did Lin Mo see the cold truth clearly on the final battlefield.