Do not always follow what others say. You must believe that people's hearts can tell right from wrong.
"Every time Mr. Ying solves a case, he spends some time alone in silence in his study. If you wait outside the door, after about the time it takes to drink a few cups of tea, a rose-ringed parakeet will fly out through the half-open window of his study, carrying a letter in its beak. No one knows where it is taking the letter."
"Whenever we ask him about it, the gentleman just shakes his head. I thought he was unwilling to tell us, but later I realized that he doesn't know where the parakeet takes the letters, either."
A semi-alternate Republican-era setting with supernatural creatures, but little involvement in war.
The main story is basically a classic mystery, so please point out any errors.
An original-character story. The whole work is free, and updates are irregular.
There is no couple in this story, but the protagonist has someone he likes.
Theme: The clever manipulate everything from behind the scenes, while the unfortunate have no control over their own fate.