Private Detective Higurashi

(from ebookjapan):
A man named Higurashi, an Okappiki (a sort of Edo-era private detective) finally managed to seduce Momoko at a bar. Higurashi was not just a plain old man. Wielding a pole with ten hands, he solves one bizarre and difficult case after another in Edo. However, Momoko's sharp guesses were actually helping him out. The superiors' assistant, Todai, are obsessed with Momoko, and the situation is kept in a constant state of suspense. A masterpiece of exhilarating jidaigeki action!