This is such a clever way of doing recap episode because they don't just push previous episode in your face, as this episode feels like a reflection of sort, as the character reminisce about what had happened all previous episodes. This reminds me how Full Metal Alchemist: Brotherhood did their recap, and iirc they did this with Last Exile too. We actually get some character development too here, as if the character strengthened their spirit after remembering. And there's a hook for the next episode too at the end, which is really neat!