Friends, apocalyptic Egyptians, fellow wankers. I understand some of the concerns listed here, but as a hopeless DS simp, I have to say I enjoyed the content. I play F95 games primarily for lewds, but story/immersiveness is a close second. Even an obscene bastard like me understands the need for occasional world-building and character-building. I think episodes like this are necessary to make future ones more enjoyable.
Regarding Ain's content, I'm as disappointed as the next person with her limited sexy time, but I still think it was an important moment in the relationship. I assumed there would be more lewdness with her because I was thoroughly convinced that this episode would focus almost entirely on Shani's non-lewd(?) trials. And any time spent at home with the remaining harem would be fuck time. As a result, I thought our interactions with Ain would be more horizontal than vertical especially since Shani recently got her well-earned chance to ride the pogo stick. Regardless, Ain has been wanting to spend more non-lewd, quality, F/D time together. I'm assuming even a fuck toy occasionally wants to be treated like a regular person?
Don't know for sure. That would require me to obtain a conscience. Anyway, just think how grateful she will be in the future now that you have granted her wish. That's my best attempt at looking on the bright side gents.