A rather bland example of why RPG maker style games and erotic story games don't mix.
It seems some game developers have a perverse need to add gameplay where the player is forced to do something he knows isn't going to work but is forced to do so in any case. "Open the door" "Idiot, can't you see the door is locked!"
In this case, find your black friends sister on the beach. She clearly ain't there but you have to click everyone with the game telling you this clearly ain't her before the game tells you finally she ain't on the beach.
No shit Sherlock. Next go to all the stores in the mall,gosh darn, she ain't there either! Thank you game dev!
This forced time wasting is a very JRPG thing to do. IF the story telling is okay, it can pass for gameplay but in an erotic game... especially a crude one as this, it falls flat.
And once you found her, you practically rape your best friends sister. Later in the day you get a blowjob for one study session and your sister has sex with you because she got stood up.
Not exactly a refined seduction game. Walk up and down the map, get sex scene.
This game is not the worst of its kind, far from it sadly it is just that an erotic game requires more then wandering around a map to see sex scenes.