Moriarty the Patriot is a Japanese mystery manga series written by Ryōsuke Takeuchi and illustrated by Hikaru Miyoshi, based on Arthur Conan Doyle’s Sherlock Holmes series. It is a prequel, focusing on the youth of Holmes’ nemesis, mathematics prodigy, William James Moriarty. An anime television series adaptation by Production I.G aired from October to December 2020. The series is a split-cour anime, with the second half set to premiere in April 2021.
The manga series, written by Ryōsuke Takeuchi and illustrated by Hikaru Miyoshi, began serialization in Shueisha’s shōnen manga magazine Jump Square on August 4, 2016. As of November 2020, it has been collected in thirteen tankōbon volumes. The manga is licensed in North America by Viz Media.
In the late 19th century, the British Empire has become a global power. Due to the strict class stratification, the average citizen has little chance of successfully rising up to the top, where the despicable nobility rules over them all. After Albert Moriarty’s family adopts two orphans, William James and Louis James, he learns that they share a common hatred for the corrupt British nobility with William James calling himself a “crime consultant”. They scheme together to kill Albert’s cruel blood related brother, also named William, burn down the family estate, and then start a new life together aimed at using illegal means to destroy the class system which had plagued the country for centuries. While enacting an elaborate scheme to murder a noble who was hunting commoners, William James Moriarty encounters Sherlock, who is able to deduce a third party was involved in the murder. This piques Moriarty’s interest in Sherlock and leads him to frame Sherlock for murdering a count to test his abilities.