By the late 19th century, the British Empire had become a global power. Due to the rigidly enforced class distinctions, the aristocracy had taken control, while the chances for the lower classes to succeed and rise were very slim. William James Moriarty, the second son of the Moriarty family, is a young mathematics professor who has stood out for his intelligence since childhood. He led a simple noble life alongside his brothers Albert and Louis. Outside of school, William was a renowned private consultant who solved problems for those in need. However, his gentle demeanor was misleading, as he concealed the true purpose of the group he led - to build a new world from the ashes of the old one. Yuukoku no Moriarty offers a fresh perspective on Sir Arthur Conan Doyle's original work, shedding light on how he became the first and only 'criminal consultant' while keeping the spotlight on the villain.
