Of course, I help you with anything I can.
First of all, the game is still at an early stage of development, so you can't go too deep into the relationship with the girls.
The main story doesn't offer a really significant advance in your relationship with the girls. No girl will become your girlfriend for the main story. That's what personal events are for, which are side quests that you unlock by talking to the girls and selecting the option: "Something new?". In this version 0.1 only Nana's quest is available, a secret character a little hidden in the game. The main story really serves to make or break your relationship with the girls, which can either block or unblock romantic paths. In turn, depending on your decisions, they allow you to unlock hentai scenes with main characters, such as Yuri and Fuyu. Others with secondary characters, such as Sophia and Stephany (Yuri's friends). And some a little more romantic, like with Kokoro.
Tell me which character you are interested in and if you want I will tell you what scenes there are with her in this version of the game and how to unlock them. Thanks for comment!