I just finished this update and I would say I'm pretty mixed about it. You have Paz, who was prettier in person than I imagined, showing up, which was nice. Along with some of the MC and Arlette's backstory. This was all of the good stuff this update, for me.
The mixed stuff came with the sudden japanese background used for said parts of the flashback. I get the dev's influence but it felt weird in game. The main cast conflict with that flashback, heavily. As for the sex scene with Aoi and the Ayame stuff, it felt a bit like filler. The Rina stuff at least was apart of something important with Arlette character. Aoi and by extension, Ayame, really weren't all that interesting. Overall, it just felt a bit unnecessary.
That's pretty much it. That's how I felt about this update, personally. The setting choice aside, which I felt was odd, I liked what happened with Paz and Arlette. It wasn't a bad update but it gave an inconsistent feeling while getting through it. I'm looking forward to the next update.