- The detective story begins.
- The detectives are a duo, Shinjurou Yuuki, known as gthe Last Great Detective", and his partner, Inga.
- For some reason, they do detective work, solving the mysteries of the world and uncovering hidden truths.
- If a wealthy man is assassinated in the West, they'll travel there and expose the murderer.
- If a man dies of a curse in the East, they'll prove that it wasn't a curse, with Shinjurou's reasoning and Inga's aid.
- When their strange bond is firing on all cylinders, there's no mystery that they can't solve...
- Or that's what they would have everyone believe, but more often than not, things don't go as planned for the pair.
- Even so, it's as if the two are drawn into pitting themselves against cases.
- "However, calling me in means that some crime is going to occur. And a major crime at that."