Young Liu Hengshun wants to be a great hero who protects Jiuhe City.But every time he did bad things with good intentions and got into trouble when catching thieves, he was hated by the people of Jiuhe City.Because the paper puppets disrupted the river lantern festival, he got acquainted with the mysterious girl Xiaobai who controlled the paper puppets.The investigation led to the Baitingshan fire case ten years ago.During the investigation, they formed a fringe investigation team with coffin digger Sun Xiaoyou, mechanical genius Du Shuai, and supernatural girl Xiaobai, and uncovered the unknown and shocking plan of the mysterious dark organization Mogudao - human weapon experiment!In order to protect Jiuhe City, Liu Hengshun stepped forward and fought bravely.