Tbh, this game has the potential to be the greatest. It already has a peak visual style, one of the best animations I've seen and a very interesting story begging. Girls are truly breathtakin. But I hope, in the future, there will be more gameplay features. Without them, it would be just another manga with some movement in several scenes. I would like to see maybe:
fighting mechanic, if there will be fights in the game;
sandbox mechanic, when you have to decide when and where to go and interact with whom.
may be a little bit of mini games, such as wheny you are trying to earn some money or resource or some other activity (the first thing I caught in mind is, for example, Goddesses Whim and fishing/ tree chopping mechanics)
It will give a little challenge and feeling that you have to make an effort, some specific decisions and actions to earn the reward. This will submerg you into game and story because it is not hero doing this stuff, it's YOU. Then, for me, this game will be the best. Thank you, developer, and wish you luck!