How to meet Helga

To meet Helga, you need to attend your Political Science class... twice.

On your second time, you get invited to a barbecue at the Sunny Peak Naturist resort. You need to wait (or skip) until a Thursday, and go see her.

When you do, she will be exclusive, and you will actually lose a lot of the side characters, including Annie, Nicolette, Mila, etc... until they are adjusted to possibly be added back.

Why? Because Helga will always be with you so you can't go to see characters behind her back.