I'm not entirely sure what 'capitulo simpsons pulp fiction' specifically refers to. If 'capitulo' means chapter in Spanish, perhaps it could be about a chapter related to 'The Simpsons' that has some connection to 'Pulp Fiction'. Maybe it's a fan - made crossover idea where elements of the two are combined in a particular chapter or story.
Sure, the Noragami manga is completed. It was a great ride with an ending that wrapped up the plot nicely. If you haven't read it yet, it's worth giving a go.
Another theme might be the subversion of expectations. We expect the Simpsons characters to be in their normal, comical situations. But if there are elements of 'Pulp Fiction' involved, like unexpected violence or complex moral situations, it subverts what we know about the Simpsons. So, subversion of expectations could be a theme.