The review below unfortunately hits the nail on the head, which is incredibly disappointing since the premise of the game is genuinely interesting.
The dialogue is decent, and there is some actual mystery involved. This had the potential to tell a very engaging story. However, where it all falls apart is in the "gameplay", which is just... bizarre. Clicking a "timed" event to gain points which you can spend to do activities which consists of clicking another "timed" event to gain more points which can be used to unlock tiny scenes which increases certain stats. Over and over and over again.
Also, there is no actual sandbox to speak of. You just gotta navigate to different rooms in the house to do the previously timed clicking "game" to get more points.
Unfortunately, the game game consists of a good idea and premise, executed quite badly. This needs a full revamp from the ground up to have any sort of chance of becoming decent. Either it needs to be a traditional visual novel, or the sandbox needs to be heavily revised.