Bad:
1. Commas need to be followed by spaces. I don't know why this is an issue, but it's consistently one to the extent you could probably find and replace to fix it all. Occasionally happens with periods in the beginning.
2. Demo has no sex scenes. Not surprising.
3. The implication is the main plot will take place when I get home. But then most of the characters I get to see will end up not being around? I guess we'll see, but would be disappointing to lose them all.
Observations:
The little sister has all the good personality, and the older sister has all the good looks.
Thought the MC was slightly ugly, but time skip FTW.
Not a huge fan of this model type, personally. It borders on everyone looking bad, in some ways. But it does give the characters nice eyes, and the females are cute on average. Usually animations look gross with it though. So far I'm inclined to say that's the case.
Bit confused about the whole decade thing, since everyone is 25...Did they start college at 15?
Good:
The lighting is beautiful I suppose.
The plot is as a whole entertaining. Not crazy, but at least I don't want to skip everything like normal.