Un-Go

Un-Go (アンゴ, Ango) is a 2011 Japanese anime television series produced by Bones which will air on Fuji TV's noitaminA program block in October 2011. Based on Ango Sakaguchi's novel Meiji Kaika Ango Torimono-chō (明治開化安吾捕物帳), the series is directed by Seiji Mizushima with script supervision by Shō Aikawa, character designs by pako and Yun Kōga, and music by Narasaki.

Plot
The story begins with a pair of detectives: Shinjurou Yuuki, known as “the Last Great Detective", and his partner, Inga. Together, they solve the mysteries of the world and uncover 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.