The first volume started as a blast: very good story, good drawings, lots of kinetics scenes. In summary, a very good first volume. The author did a good job refreshing the character and explaining what is going on. BUT, The second volume, and following chapters, the story have fallen into a boring story that tried do add something new but failed hard. It is unclear the characters motivation to keep up on things. Also some nonsense fights and "pseudo enigmas" that failed on both sides: it could not be a good action mangá nor a investigative one. I'll keep reading. If the future chapters improve the quality, I'll change thisreview.