So far I'm enjoying the interactions, I'm still early in, but what I don't understand, is why you roam like a sandbox when it plays like a linear VN? I can only have one active quest at a time, and after my first interactions with Natsumi, it's all basically a repeat, so it kind of feels like all that should be dropped, since it adds nothing to the game, other than to fill time without any benefit.
Sandbox part is going to be removed and reworked on the next update, when I started, the idea was creating a sandbox containing interactions for every girl, but now the story has changed. The new sandbox is a reward for completing a route, currently the Natsumi ending is in progress and it will replace the sanbox part, the game is going to be more linear with choices in between.