Lao Han is responsible for cleaning the embassy area, and he can always "read" abnormalities from the garbage. Recently, he found residues of the same rare catalyst in the non-recyclable garbage of many embassies. His intuition told him that this pointed to a coordinated series of sabotage disguised as an accident. When he tried to give an anonymous warning, the other party on the phone accurately called him his secret agent code name that had been abandoned for twenty years.
