First, I just want to say, the art in this is gorgeous! I love the character designs, and the creature designs are really cool as well. Second, the little bits of lore and world building sprinkled throughout the story were really intriguing, and really pulled me into the setting and got me more interested and invested. Seeing a world focused on demons where angels are considered the threats felt very unique, and I loved the idea of 'feral demons' and 'cannibals', and how that was never fully explained, because it made it feel more like just another part of this world that didn't need explaining.
Bael was such a cute protagonist, and I really enjoyed the rest of the cast too! The mystery was intriguing, and both the endings left me curious; I'm not sure if it's a case where I need to play your other games to get a better understanding, or if you're planning on making a sequel, but either way, I thought that you did a good job of answering some of the major questions while still leaving a lot of stuff ambiguous, in a way that left me wanting more.
From a technical standpoint, I did encounter a couple of bugs; when you first talk to Seere in town when you go to get the notebooks near the end, you walk right through him. Also, the most notable one, when you've written the letter in the shrine, you're able to leave the room without talking to Abe, but then you can't leave the shrine. If you go back into the main room, Abe respawns and you can't interact with him; I had to reload the game to get the scene to play properly again.
This was a really lovely game though, ad I'm looking forward to both playing your other games, and seeing more from you!