Enjoyed the game so far. The flow-chart was extremely helpful in getting the full gallery without having to constantly start from the beginning every time. Also enjoyed the occasional misplaced pic you receive from her from time to time, though I do wish it was more than just a singular pic at times. The MC seems to relaxed about her cheating though and especially the group beach chat seems... meh with the MC's reaction. He doesn't bring it up to her at all after and when he does it goes into the "rumors about her cheating" dialogue when he has photo evidence of it happening.
Don't get me wrong, I do enjoy the game, but if two route's are focused and evolve into Netorase the the third route needs to strictly stay Netorare. The other two it seems she didn't want you to know but is now excited to have your permission and on the returning to beach even says "I already know a guy" (hints from the group chat and the other photo). The final route needs to not go into that. MC wants to do better with his girl, great. Does she still find time to cheat on him, yes. Maybe a phone gets answered and she's in the middle of sex but doesn't know the call was made. Maybe the guy fucking her sends a couple pics after you tell her your going to sleep and she hurriedly deletes them (she is out/with Jenn again). Things that make the MC almost aware of it but still doesn't know and maybe now is trying to go against the rumors or ignore them.
Like I said, good story and looking forward to future updates.