SUPERPOWERED SANDRA OBSESSIVE FOR FREE
Initial goal (Max out Enhanced Senses immediately and get grades to 100 before the end of the month) you get 100 school influence for free every month that your grades are at 100, that's why you want to get them there before the end of the first month. Personality is a good choice for 3rd pick because you get extra favor when socializing at lunch. The stat boosts don't do anything that you couldn't get by going to class a few times so there's really no reason not to take both Sister and Well Endowed, you can't get them later. The polymorphism version does not give you extra options during combat sex for example). Perks: Sister, Well Endowed, Personality (The well endowed perk you can start with is superior to the one you can get from polymorphism. Raising them above 2 gets expensive fast which is why you want Mental if you want the Teacher's Aid job. You can raise all of these at the institute so this choice only matters at the beginning.
Walkthrough-guide by khumak Starting stats: Mental primary, Social secondary (this is mostly to enable the teacher's aid job ASAP but also increases your skill gains for training, both during class and also from getting tutored, also makes Mind Control more effective).