They are the famous high school detectives in City A who make all criminals fearful.
They love to read the detective stories of Sherlock Holmes most, and they regard Conan as their idol and rival.
It is true that the career is booming, but it is obviously not challenging at all. They are eager to challenge themselves and wish they could catch a dark organization as terrifying as in "Detective Conan".
Inadvertently, they traced clues of a criminal group.
And join hands with them to open the door to sin and move towards the Yangguan Avenue of light and justice.