Looking back at the undercover mission nine years ago, it was heart-wrenching. As the children of the anti-drug police, 12-year-old Wang Haixuan and 11-year-old Zhang Zhiyue took on this heavy responsibility and walked step by step. The process was arduous, but the belief in their hearts made them never give up. Everything was for revenge, for the motherland, and for one less drug dealer in the world. They worked hard again and again, and finally ushered in the light.
Concept: They disguise themselves as part of the darkness, just to open a crack to let the light in.