(The order of the two main topics in this post have been switched around, so the big spoiler will be after the “Read more” tag, rather than before.)
Theme-wise, this episode really started by hitting things right at the point I’ve been discussing all along, of the twin themes of superheroes and naivete (or childishness), with Aya telling them that they are playing at being superheroes. And this episode was exactly proof of what happens when you play at it – there are repercussions. The theme of “The superhero’s sacrifice” also came here, through Yashiro’s mouth, as he’s telling Satoru he won, but is also presenting him with the bill of saving everyone else – his own life.
And this is a common theme, to save everyone, you must give up your own life. I mentioned it in last week’s write-up, how impossible it is to actually save everyone, to make sure absolutely no one is ever alone. Even trying will quite literally cost you your whole life, every single moment of it. And we can all think of stories, time-travel or otherwise, anime or otherwise, where the cost for saving one person is one’s life, or at least one’s happiness. Plenty of superhero stories are like this as well, with them ending up clutching the corpse of their loved ones, as they went to save the world. So, Satoru’s getting a crash course.