Red doesn't care for Ruby, well not in a love type way. It's all but said Red will fuck anything with tits, just because he can, but he likes married women.Yeah that much is clear but why should the MC care about her at this point? Better yet, why should the player care for her at this point? Because up until now we had a scene at her place in the last update where all this was explained and that was it. That is supposed to justify picking her over Julia who we've been building a relationship with this whole time? The same Julia that has all this mystery surrounding her and their past?
He views it as training, nothing more at this point, except with Julia (I think there's a bit more going on there).
He knew he would be meeting an angel.
Julia or Ruby's training is all about him using his powers to get stronger. To be able to resist being attacked by bad people.
Why does Julia have them and not Ruby? Well, I don't know, only the Dev would. If you want my opinion on it then there is something more going on between Julia and Red and that is the reason for her stat points.
I am sure there is more to these three than we know right now.
It was said multiple times his mother was coming and in his state it would be a bad thing to run into her. I think it was even mentioned she was looking for him.
As far as skills, they're not needed any more, Meredith is pretty much broken at this point Maybe in part 2 there will be a skills screen before everything kicks off, but I really don't see the point. Why would Red expend his energy to do that when it's pretty much a done thing.
As far as the rest of what you said, I think you need to go back and slowly read the story, everything is explained. I can't explain everything to you, I'm not the Dev, these are my thoughts/opinions I got when I read the VN.
I could be 100% wrong or I could be 100% right or somewhere in between. But for now this is what I see and how I feel about things. You bring up somethings that shouldn't even matter, like Meredith and skills, by this point in the story she should be pretty much broken, so no matter what you put into skills should make no difference. The whole Brie thing, I do believe Julia told him he would be meeting a special angel that has requested to see him. At some point I also think she mentioned her name before they left, if not then it's an error on the Dev's part.
Not everything is black and white, sometimes you have to take a leap and just come to your own conclusions in a story. It's up to you to like or dislike something or to connect things in your own way.
I can talk facts from the story, but some of the story is very shadowed right now and we don't know about it right now, so we make up our own minds how to see the events.
It's one of the downfalls with VNs, they're released in chapters or acts, it's not like you can read the whole thing from front to back right away so everything makes sense. This is why some people wait for the completed tag, others just go with the flow knowing not everything will make sense.
So, I once again say, this is my own thoughts/opinions based on the events in the story.
I really do think you should read it slowly again because some of the stuff you talk about is explained. That choice, of course, is for you to make.
Thanks!