Hello, there. That was a long message. I will answer in points:
1. I care about Rex's customizations, but why did you mention it?
2. I was focused at 100% on the Rin rescue, actually, this last version 0.42 concludes that part of the game.
3. If you're having problems with Chibi battles, you could level up your characters; the higher one will set the Rex's level. Cloy started her fight with lower life because she used her energy in the previous sex events against Heinrich, and the NPC's energy set their life, but you can heal your characters through items you can get for free inside your allies' houses (bear's broth).
Another tip is that if you lose the fight, you can choose not to continue. This way, you can gather more items or levels and try again. Your progress won't be lost; if you participated in some RPG battle, you'll only need to complete the remaining fights. Clearly, if you close the game without saving your progress, you will lose it.
If you're playing the Online Version, I've added three new save points. You will only need to fight one match, and Cloy will start at level 35, so either her fight or Rex's should be easy. However, that will appear in the upcoming Online Version 0.42. Sorry about that.
4. Regarding the animapods, you only need about one second to use each one, so I don't think it's too low. However, I could add the option to use more than one at the same time—thanks for the suggestion!