This was a good game with beautiful music and great writing, but I feel like it had two rather irritating flaws:
1: For an English release, it's hard to tell who's talking at any given time, as most English speakers can't read Korean for the names, and the sprites don't move in such a way that indicates who's speaking. A simple 5% zoom-in-zoom-out would fix that, and / or just using the Romanized names for the message box.
2: Most of the characters look like the same person, it's hard to tell them apart at times. I feel like even just giving them more unique hairstyles would've helped a lot.
I look forward to seeing what else this developer / team create!