>>4 It isn't really all that interactive, um, there are like, only 2 or so choices in each installment that don't really affect the only ending the story has. The first installment, I'd say, you can just either play it (Or more like reading) for fun or just go onto the second game. It wasn't all that bad, but it's not as good as the 2nd and 3rd installment are. It didn't give me as many feels as the 2nd game, I'll say that much.
And like I said, this has a ton of erotic Yuri content in here, like, sex scenes. So, this isn't for the more light-hearted audience. The stories may not have like, intense love stories with the detail and all, but it's still sweet and adorable.