As the title says, episode five is probably going to be one of my favorites. From the classic JRPG elements, to the narration, the story is a big nostalgia trip. Then there is the content itself, without getting too spoiler oriented, the character development, the lore behind how dark blasts really work, it's been a fun adventure thus far, and I await the continuation of the story with excitement.
Also, on an adjacent note, I've seen other playing the hero class, and while I haven't delved too far into it, the class looks fun. The rapid change between weapons is something I hope NGS can replicate to some extent, although, that is a topic for in game suggestions.