I was thinking the same thing
Well first he has to finish school.
I dont think its filler... Yeah the main story definitely about the demon king but this manga is not only about that. Its about the relationship between characters so I can't say it's filler
In this case, we won't see Iruma becoming the king in this lifetime. The pace of the main history is really slow now
Yeah, the friendship is truly well written here, this is one of the reasons i love this manga. Now even the romance between Ameri and Iruma is developing, but all of this was being developed as well when the main history was going on and it was done in a marvelous way by the author. But now the pace is so slow, it makes seem that the main history was put aside
I'm tired of fillers, when the history is going to develop?
I want to see Iruma becomes the demon king