Really liking the game so far! Honestly I really wish this story could be expanded on >.< Like with the main character or another siren in this world. I could see this being a full game. You have tons of potential to make bigger projects! Would definitely love to see more of your work in the future, love your world-building. Everything else I enjoyed as well, between the character art, logo art, CG and BG art, voice acting, and music!
Only critiques are to maybe add an endings walkthrough, add instructions for the fishing game (I was struggling with knowing what to do haha), and add a "load' button in future projects.
Edit: So I caught a lot of fish and it still puts me on the path as if I didn't catch a lot of fish. Not sure if this was purposeful or not or if it was a bug on my end but just wanted to make you aware!
Might be pointless because you still get the same result as if you fail fishing, If anyone reads this who needed help with the fishing game, here's instructions: you're supposed to tap the space keyboard, not too fast that it turns dark red because you end up failing. You have to tap at a decent speed and I think maybe stop if the color changes to red. And I think slow down tapping if it's another color like yellow. Not sure if that's 100% correct but that's how I ended up getting the best result which the fish is reeled in all the way and the MC will say "This is plenty!"