Ling Muyao: An intelligence officer in the Tianjin station of the National Government's Central Bureau of Investigation and Statistics, known as the Juntong. His true identity is a covert member of the Spark Society, code-named Han Jiang.
He graduated from Yenching University's Department of Physics and took part in the campus radio club. Highly skilled, he specializes in modifying all kinds of radio equipment and can turn an ordinary radio into a miniature transmitter.
While studying in Germany, he encountered a wealth of progressive books and ideas, gradually developing the conviction to fight for the cause of national liberation.
On the surface, he is a by-the-book, taciturn clerk who spends every day buried in files and reports. In truth, he is meticulous and observant, able to analyze seemingly unrelated details and uncover leads, then transmit intelligence with precision under the watchful eyes of multiple factions.
He has a little-known habit: every time he cracks a code, he draws a tiny plum blossom in his notebook.
