And now for something completely different.
It really says something about how inundated anime viewers these days are with “siscon” jokes that no one bats an eyelid at how overtly Hiromi fetishises his own little sister in Kyoukai no Kanata. It’s just an anime thing, not something to be taken too seriously. And Hiromi’s little sister complex is probably one of the funnier recurring gags in the series.
But when you step outside of looking at Kyoukai no Kanata through the perspective of an anime viewer and just look at the narrative as it stands, what is Kyoukai no Kanata actually trying to say about Hiromi by characterising him as a siscon?
The answer is quite interesting.