There can be a few reasons for this.
While it is seen as excessive and unwanted by some, there have beengood filler arcs.
For the most part, it’s been adapting the manga faithfully.
With that in mind though, a lot of the episodes and chapters deviate fromSpy X Family’soverarching plot.
All of these scenes and episodes work so well forSpy X Familybecausethey develop the relationships and characters so much.
By expanding this sequence, it also allows for more humor.
Can Filler Work For Other Shonen Anime?
However, filler can still benefit other shonen series.
Take for instanceDemon Slayer, which is a shorter shonen than most.
A special Demon Slayer event coming soon will unveil the Infinity Castle Arc films release date.
Meanwhile, the most recent season ofDemon Slayeradapts one of the series' shortest arcs.
It’s a training arc, as well as the calm before the storm.
To best adapt this arc, stretching chapters out is necessary.
