I'm not entirely sure specifically what 'pogo pulp fiction' is as it's not a very common or well - known term. It could potentially be a creative or made - up concept that combines the idea of 'pogo' (maybe related to the pogo stick or some energetic movement) with 'pulp fiction' which often refers to a genre of inexpensive, often action - filled or sensational literature.
I don't think so. While 'pulp fiction' is a well - known genre, the addition of 'pogo' seems more like an idiosyncratic or creative combination rather than the start of a new genre. Genres usually have a set of common themes, styles, and audience expectations, and this doesn't seem to fit into an existing framework in a way that would make it a new genre.
I have no idea exactly when Pogo Comics Volume 9 will come out. Sometimes there can be delays or changes in the schedule. Best to check with the publisher or relevant comic forums for the latest news.
Nezuko is initially 12 years old in the manga. As the story unfolds, her age doesn't change significantly in a traditional sense, but her character development is quite remarkable.