I'll start by noting that I am in no way connected with this games production or writing, and only just found this days ago. I feel like you're over-analyzing the unaddressed overarching elements of the story. The 1st AiGirl is tsundere and is playing hard to get it's very obvious and a classic trope. MOST the characters are seemingly designed within specific tropes honestly it's coming together pretty well compared to most VN's. Most the things you mention are addressed within the story over time or are being hinted at, I'm not going to add spoilers you can either notice them yourself or not. MC's situation at the start also seems to be a much *MUCH* larger overarching plot that the story direction seems to be getting to, but has not yet covered. From where things left off it's at a major turning point where some of these questions will probably start to be answered and make more sense. It's also obviously still very early in the story as well, foreshadowing wise I've got a pretty good idea where some of these plots are going to go (its honestly obvious). The lack of random encounter/ "AiGirls not calling the MC or showing up random" etc.. Is obviously due to the point this is at in its production, its still way too early to expect that level of side content. My suggestion to you would just be to put this on the back burner, and wait for a few more updates before you continue. This game isn't even at version 1.0 yet, literally only at v0.3.6. Most your issues are just nitpicking early content, and not being able to follow or notice the overarching plot points. This is actually one of the better VN's on here overarching plot wise the author has made good use of hints and foreshadowing if you know what to look for. As for understanding the characters, my suggestion would be to associate them to the tropes they are obviously leaning towards. I mean no offense it just seems like you missed a lot of the more subtle story elements that you seem to have an issue with. I typically only check these types of titles out to see if I like the general setup or not and then wait for later versions to have a more fleshed out experience. I would say this has lots of potential and recommend waiting until the story is closer to version 1.0 as v0.3.6 is wayyyyy too early to be so critical.