I have to disagree with many of the comments here, This game is really good considering it's only about an hour long, the main issue is that the MTL doesn't get across the storytelling very well, the custom tile sets and the aquarium animations look great, the custom BGM is a huge upgrade over just having stock BGMs. It's a upgrade over the generic RGPM experience. You have the choice of a pure love or NTR, the NTR itself is different to the overused "NTR tropes". The pure love was decent. The only major downside really is that the aquarium management simulator is just a fishing minigame, rather than a full management simulator the fishing minigame is fine, it just needed to a part of a larger system. The game is also quite linear. (I played this game using my own MTL setup, not the download in this thread)
Overall the game is decent (for a 1 hour long game) it just really needed more gameplay depth, story depth and more content.