Here's my review of the game. Note: I'm terrible at explaining things so I'll just write what I feel and try not so sound biased as best as I can.
Gameplay: The gameplay is your standard turn based rpg with its own twists here and there. The use of animations and stylish flourishes helps make the battles feel more dynamic even though you're just inputting the same commands. There was a wide variety of spells and skills you can switch at any point in battle on the fly thus opening up new strategies and possibilities, its an added bonus that it didn't cost a turn which might be a good or bad thing depending on the person and point of view but I appreciated that mechanic as it made gameplay easier and lot less stressful.
While the gameplay is fun it does require a lot of grinding if you don't want to be overwhelmed by enemies mainly bosses so if grinding isn't your thing you might not enjoy the game. if you can look past the grinding I'm sure you'll have a great time playing it. It helps that the encounter system is touched based and not random encounters allowing you to choose when to fight and allowing you to explore unhindered.
Mechanics: The mechanics were fascinating and simple enough to learn although it took a while to fully grasp them(might just be a me problem). From the familiar system that lets you turn enemies into allies to the level up system which allowed you to control which skills you learn and the stats you develop they were all enjoyable and once you learn how it works you can tailor your party and character to be the best it can be and you'll find yourself beating enemies left and right with your ideal party set up.
The game does have puzzles which are fairly simple to solve however there were some that just seemed impossible to accomplish or the path just wasn't made clear enough(this might just be me). What i really appreciate was the option to skip them entirely and destroy the obstacles at the cost of experience giving the player a new layer of decision making.
Soundtrack: The soundtrack while feeling like your standard type of JRPG OST was still wonderful and pleasant to listen and each and every artist involved in the soundtrack did a splendid job and their talent truly shines in this soundtrack. The looping of tracks could've been done better and made more seamless but that's just a minor nitpick and it didn't take away from my immersion. As the story progressed certain tracks would change keeping the experience fresh and avoiding repetitiveness in the soundtrack, as a result I didn't get bored by the soundtrack.
Characters: While very few, the characters were interesting and captivating with their personalities and behaviours. I personally found them to be well written and each character had been decently fleshed out. The protagonists were likeable and charming, the villains were proactive and helped drive the plot forward although certain elements did come out of left field without much build up but it was not too jarring and it was still consistent with their character for the most part. The NPCs felt somewhat alive and weren't just bland placeholders although I feel like they could've had a few more pieces dialogue but they were fine as is and helped build the world as they would comment on current events and progress with their lives.
The monster designs were pretty nice and while most were pretty much reused and recolored they still felt unique and well designed.
Appearance: For an RPG maker game the graphics were pretty decent and the designs were not that bad. The level design was satisfactory and dungeons were well designed and the places were easy to navigate. Not much to say here as everything was pretty standard.
Story: The story was engaging and very enjoyable despite being very linear. There were lots of twists and turns to keep you engaged and pacing was decent enough to not have any issues although like i said in my characters segment some things came out of left field with not much build up but the following events were satisfactory enough to let it slide. each character is utilized well enough and has their time to shine in the story and the world building and revelations were executed well. You'll be in for a wild ride with the story.
Overall i found the game to be very enjoyable and engaging, the grinding is not too bad, the animations in the gameplay made it feel fun to play and the overall vibe of the game was captivating for me. Nocturne Rebirth is a game that's worth your time and its free so it won't cost you anything. Thank you Eplipswich for the translation you're awesome.