Honestly, this entire episode was kind of bittersweet. The fact that we got Schtrom's backstory really helps to make you see that villains are truly never born, they are made. It, of course, doesn't excuse what he has done, but it does explain his actions. We don't see much of Shin and everyone else in this episode. And even those scenes are such a juxtaposition to the scenes involving Schtrom, as those scenes are very dark in color and more gloomy. Whereas the scenes with Shin and the others are all very bright in color and happy. It's super interesting! The entire composition of the episode and the anime in general is just so good!!