In the neon-lit city of Xinhai City, undercurrents of gangster forces are surging, controlling the lifeblood of the underground world. Karasawa, 27 years old, was an orphan born in a slum. With his cold mind and extraordinary skills, he became the youngest leader of the "Ye Blade Club". However, when a full-scale conflict broke out between the Night Blade Society and the rival gang "Iron Blood Alliance", a betrayal against Tangze quietly began. He discovered that his respected adoptive father was hiding a secret, and that behind the gang war in Xinhai City, transnational criminal groups and corrupt officials were actually involved. Tang Ze teamed up with his loyal brother Lucas, the mysterious female killer Ling Shuang, and the undercover Lin Ruo who betrayed the Iron Blood Alliance. They walked on the edge of loyalty and betrayal, using wisdom and courage to fight against the enemy. In the urban arena where swords, swords, shadows and conspiracies intertwine, Tangze not only has to fight for survival, but also seeks his own salvation.
