VM #2 Once again we go back to volleyball for raising your partner satisfaction level :( it does take practice, but once you get it you'll win every game with your eyes closed, plus it by far gives you the biggest satisfaction for your partner, and the most money, I played the original years ago, so I already had a idea how to play volleyball in here, but it took me a while as well. I would do a playthrough with only playing volleyball with your partner, don't worry about the missions just focus on volleyball, that should help you get a grasp on the mechanics.
LOL, lowest I've gotten is a C, I have gotten a few S ranks.
BTW I SUCK, and I mean SUCK at tug of war! I even lose on easy sometimes :( whenever I see a "win at tug of war mission" I just play volleyball all day, and quit the mission once I'm back at the hotel lol.
And as I mentioned, never give gifts while you are in your hotel as you have no way of knowing if the gift was accepted, only give gifts when you can give them in person, it counts as a activity so it waste 1 of your 3 activities, but you will know if she accepts or not.
If you thought Ayane was an ass, try playing as Kasumi, and ask Ayane to be your partner :/ have fun with that it's almost impossible, in fact that should be a character mission for Kasumi "try getting asshat Ayane to be your partner"