Finished it, realy liked the update as a whole.. Finally some more nudity and a sex scene.. More then I had expected considering previous updates.. The art style mostly is what pulled me in for this game.. Wished he wouldn't change styles between some of the CG/scenes though..
But overall think it was a good update.. and I know it could use some more to realy feel polished/good.. What I would suggest is having options during weekend to fill out your time.. Once the fapping on the chair is finished you have almost nothing to do there.. Also the peeking at Sara seems to not work properly after you did them twice.. The options shows during weekdays when she's not there, but not during weekends when she should be there.. (maybe because it doesn't have more scenes I guess..) Thought I would point it out though..^^
@ Those stuck, if it's in the weekend, go sleep and wait till it's weekdays and if you need to change time fap at the toilet (after you get the option from talking to the teacher Sara).. Mostly the items you might need/mis wil become available in the shop once you need them.. Only one that is not buy-able is the Ruler which can be found in front of the Sister's Room once it becomes a quest.. Also don't forget to click the girl in the room sitting there during class (forgot her name), this might also open up more if you do get stuck... (Happened to me) ^^