I'm not very familiar with this specific 'cancion de pulp fiction'. But if it's related to 'Pulp Fiction', it might have a sense of coolness and edginess, similar to the movie's style.
I'm not entirely sure about the specific origin of 'cancion de pulp fiction'. It could be a song inspired by the movie 'Pulp Fiction'. Maybe it was created by a fan or an artist who was really into the movie's unique style and story. There could be a whole backstory to it that involves the cultural impact of the movie on the music scene.
Well, Spy x Family fanfiction can be really interesting. Some fanfictions might explore different relationships between the characters in more depth. For example, they could focus on the bond between Anya and Loid in a new situation that wasn't shown in the original manga or anime. It's also fun to see how authors play with the spy and assassin themes in unique ways.
Spy x Family manga has wrapped up. It provided a conclusive and fulfilling storyline that wrapped up all the loose ends. Now you can binge-read the entire series without any interruptions.