In terms of story, Rise of a New Sun really feels so so weak and I don't have too much to say because of that. Yotsuyu having her memory lost only to become an innocent girl without agency that just loves eating dango is super lame. I generally am not a fan of "the villain lost their memory so now they are with the good guys!" because it's very often used in a lazy manner. This is no different, and I don't have much more to say than that.

That being said, Omega: Sigmascape, subaquatic voyages, musician rehaul, and some dungeons are in here that are nice so it's a win some lose some situation.