Great art, good setting and interesting characters/dialogue. There is potential for a great game in there, the dev clearly has talent.
Unfortunately, the gameplay itself is horrendous. As others have stated, it really makes no sense, way too many lockouts and lack of direction, no real ability to pick a girl and do a route because you're just forced to do fetch/time sink quests to get drips of actual content---and even there years into the project there really isn't much.
This game reminds me of late 80s/early 90s adventure games that would require strategy guides/walkthroughs, lots of different saves, and many playthroughs to get through. Except those were at least complete games, and obviously didn't have the benefit of modern QOL options. There's really no reason for the gameplay to be so poor in this.
Ordinarily I'm against remakes for active projects, but in this case, the art is good and the ideas for the characters and setting are good, so dev might want to consider utilizing ren'py for a proper VN style game. There's not that much content to begin with so it probably won't take long to just remove the timesinks, add actual progression and quest tracking, and start adding lewd scenes and expanded the sexual content, which let's be honest, that's why people play these games.
The routes need to be independent rather than forcing the player to go through everything as well. Maybe cut down the LIs if the dev doesn't think that's feasible, and focus on 3-4 of them, with their own personalities and styles. There is already a hint of that, just need to lean into it.
A 2 star rating is low, but I don't mean it to be harsh, it's just the current state is not as good as I think the dev is capable of. Seems like a first project and learning as they go along though, so I think it can be improved. Good luck!