In Qingyang City in 1980, Lu Jinghang, who was abandoned by domestic violence, was adopted by his aunt, and six teenagers including his cousin Cheng Yilin who avenged his father, Shen Yixuan who escaped from a human trafficking den, and Lin Wanqing, the descendant of the tattoo parlor, were tightly bound by trauma and obsession with justice.
Chen Jianguo, the former criminal police captain and the successor of spiritual tattoos, plants spiritual tattoos for teenagers: the deeper the obsession, the stronger the ability. The protagonist Lu Jinghang awakens the core talent "Tattoo Inheritance", which can carry the heroic soul and ability of the victim and use it as a sword.
As everyone conducted in-depth investigations, they gradually discovered a large-scale black network of human trafficking across regions, and the manipulator behind the scenes turned out to be someone they had never expected...
Using tattoos as their blades, the Youth League went undercover to pursue criminals, crack down on gangs and kidnappers, tearing apart the dark curtain that had been entrenched for twenty years, avenging the dead and fulfilling their youthful oath of justice throughout their lives.
