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The assignment was asking for their opinion and not necessarily have to be true. Historical fiction is what I would have guessed but I know there's going to be someone telling me Vinland Saga and Grave of the Fireflies are popular, yeah some shows make the exception but as a genre overall, the common ones topping the charts don't get to be about historical fiction but a hybrid of historical x fantasy x romance x comedy.

Yeah dunno if 5th kingdom is historical, and Meiji Gekken 1874 are somewhat popular this season.

I still think many draw conclusions without taking a close look. If his reference was Gundam, he isn't paying much attention.

Well people are entitled to their own opinion and it's not an area I want to dwell disagreeing if we're talking difference in points of view. The question was what the person thinks is an unpopular anime genre for them and it wasn't soliciting an answer based off some union of anime fans or recognized institution that keeps track of ratings. Just asking answers from casual anime fans online and nothing else.