Chapter 4's up and longer than usual huh?
Being the grammar nazi I am, I noticed one or two grammar mistakes. One particularly being this:
The lyrics were so sweet and dreamy and the voice...
And watch out for your tenses, you sometimes jump back and forth with present and past tense when you shouldn't.
[size=4]Don't worry happens it happens to me as well[/h]
Story-wise, I can see your starting to develop supporting characters. If you could call it that. Yuan and Konoka were an interesting pair, with Yuan's honesty getting Konoka all flustered is quite cute.
[size=4]Do I sense twincest? J/k.[/h]
Mizuki is a character I'm growing fond of, a childish Onee-chan~ One who gets out of her way to help her little sister at any chance. And the scene where Mizuki finds out about Ryushi's review on the game would've been oh so much more funnier if Ryushi feigned ignorance and got driven into a corner. But that's just me and I don't write the story.
All in all good chapter and keep'em coming~