There is one fundamental flaw in how I approach reading Path of the Assassin. That is, whenever I deliberately do it or not, I always compare my reading experience with the Lone Wolf and Cub. Lone Wolf is perfect from start to end. There were no cringeworthy scenes and the information overload from japanese names is almost non-existent. Path of the Assassin is a different read. It is more of a chronicle of history, thus being historically accurate puts a leash on how Kazuo Koike builds the story. And Path of the Assassin just, unfolds. No thrill, no surprises and all.
So to make my reading experience better in the last third of volumes, I must avoid comparisons and see Path of the Assassin as it is.
I just do not know why there were a lot of unnecessary naked women in the series! That may be either a pervy move by the authors or a reflection of society, or both.