During the Anti-Japanese War, during the stalemate stage, our party established an underground transportation station in the area occupied by the Japanese and puppet troops, and fought wits and courage with the Japanese and puppet troops.
The male protagonist is an upright and abstinent member of the National Party (and was later abducted) vs.
The heroine is an underground traffic officer of our party (a master at pretending to be stupid?)
Please don't know where it started, go deeper