This is the second iteration of the Mugen Shinshi franchise and is generally referred to as Mugen Shinshi Bouken Katsugeki-hen. *Note: In 2007, volume 1 of Shinsouban Mugen Gaiden clarified the different versions of the story and iterations of the protagonist, Mamiya Mugen. This series was designated "Shounen tantei B version."*
From BookWalker Bizarre monsters attack Mugen Mamiya, who continues to drink at a restaurant on the outskirts of town... A total of 12 volumes of "Majiya Edition Youkai Change" series, including "Temome", which depicts a lovely clairvoyant girl, and "Onmaraki", which saves a man possessed by a woman's obsession. The second work in the new series serialized in "Mystery Magazine" following "Genso-hen"!

