My dude seriously needs to just change this game format. "Sandbox" is not good for it. The story is okay and the girls are decent but if this isn't the worst offender of "needlessly being a sandbox game and wasting your time while you click through locations, hoping you're there on the right day, or at the right time, or with the stars in the right fuckin alignment overhead" then I honestly don't know what is. I cannot think of another game with more scenes needlessly hidden behind arbitrary requirements than this. Maybe that Milfy City game that got dropped by its author a while back. But I could be misremembering.
Really, the game could be so much better if this dude just got rid of all this bullshit filler and made it a straight visual novel. There's not even very many choices in the game that would do more than alter a few lines of dialogue at most. Plus it would probably be less of a pain in the dick to put scenes into the game, and players wouldn't be like "Wonder if I missed something".