Hi there!
Well, there are happy endings with all the ladies. Make sure to get the walkthrough since in some cases the consequences of some particular choices were not that obvious and some of them totally exclude different girls. There is no harem ending whatsoever, you'll need to play different paths.
Helga is a very nice character but unfortunately the sexual content with her is the least abundant. She's the pure, perfect future wife material; you know. She wasn't my favourite, but she wasn't my least liked either.
And that's pretty much it. This is a linear VN with too much unnecessary clicking (have breakfast, go to school... rinse and repeat) but I remember it as being very nice. And renders are gorgeous.
I can tell you two things: you'll love Helga, she's your type
and you'll hate Vlad's guts.