The cautious archetype is one that I relate to as a resident hoarder in games, always buying excess amount of items in case I forget later, and buying/keeping one of everything in case I want to use it later down the road. Grinding happens way too often when I'm gaming, so I totally understand why Seiya always going back to the Goddess world, which, by the way, is amazing and pack-full of content for a place that's only supposed to be a training ground. There's always one or more hilarious Goddess introduced each time, and it is absolutely amazing.
However, my rating would be much higher, maybe even reaching the "10"s if it wasn't for the latter half of the anime. The story takes a turn by adding plot-twist that kinda ruins the jokes of the former half of the anime, and put in some contrived reason for Seiya being cautious. Honestly, we don't need an explanation of why Seiya is cautious, especially when it's a character trait that many people share. Being forced to become cautious is less funny than being naturally cautious because that just makes the "cautious" jokes more burdened than they need to be. Not only that, having a previous relationship with Rista kinda ruins their current dynamic, and the fact that she scored with him ruins her own thirsty joke, like what was the point of that. The backstory was half-assed, and almost completely demolished this entire anime for me.
This does not mean most of the anime wasn't good though, as it was still an enjoyable ride until the end.
