Below I'll write a bit about my personal opinions on the game and what I believe should be changed.
Let us see here...:
The whole pill thingy makes absolutely zero sense, and you can very clearly tell that the developer forced it so that our main character forgets [Morning of Day 2 where he eats and then does homework.] and then get's interrupted by phone call just as he is about to give Akira her pills.
Or in Day 1 where he gave her pills **early in the morning**, then falls asleep for 6 hours, after which it's pitch night outside somehow and then decides not to give her pill that night after seeing her masturbating.
I think that the best change for this would simply be Akira hiding or throwing away the pills after our guy falls asleep on the couch.
Moving onto the House Layout...
House is made with very very long hallways and rooms spaced out so much.
There is no need for such long hallways, and they should be reduced down a bit. Also, rooms could be arraigned. An example would be combining kitchen and the living room. Or the storage room could be turned into an attic or basement. [Which would nicely fit the "horror" atmosphere.
The dialogue is a mess... It needs to be reworked completely.
I don't think that needs any explanation, hell, at one point our guy calls Akira "him".
And finally, animations.
While the newest sex animations from day 3 are good, all the others before it... suck.
Now, the concept of the game is something I quite enjoyed. And the model for Akira is very nice. [Not going to lie tho, I kind of preferred the older one more.]
And I am very interested to see in what direction will this game go.