In Qingyang City in 1980, Lu Jinghang, abandoned after suffering domestic abuse, is taken in by his aunt. He and five other teenagers become bound together by their trauma and unwavering devotion to justice: his cousin Cheng Yilin, who seeks revenge for his father's murder; Shen Yixuan, who escaped a human trafficking den; Lin Wanqing, heir to a tattoo studio; and others.
Chen Jianguo, a former criminal investigation team captain and inheritor of spiritual tattoos, gives the teenagers tattoos imbued with spiritual power: the deeper their convictions, the stronger their abilities. The protagonist, Lu Jinghang, awakens the core talent “Tattoo Inheritance,” allowing him to bear the heroic spirits and abilities of those who sacrificed themselves, turning his own body into a blade.
As they investigate further, they gradually uncover a massive human trafficking network spanning multiple regions. The mastermind behind it turns out to be someone they never expected...
Armed with tattoos as their blades, the group of teenagers goes undercover to hunt down criminals, wipe out organized crime, and rescue trafficking victims. They tear open a web of darkness that has held sway for twenty years, clear the names of the dead, and spend their lives upholding the promise of justice they made in their youth.
