Pretty neat visual novel! I'm not familiar with Hyun's Dojo unfortunately, so I feel like I'm missing out on all the references and not in a position to appreciate it completely, but the game overall feels rather well-built and charming regardless. I was surprised at how many unique CGs, backgrounds, expressions and so on there were, and the effort taken goes a long way in making the world feel more vibrant and enticing.
I had a few issues that I wanted to point out:
*The game can be rather confusing in determining who is talking, and whether it is out loud or in their head. For example, at the beginning of the game, there is no nametag for the player or for the person on the walkie-talkie, so who's to say who is saying what. Not sure why it didn't use ??? for a nametag when it does later on. Furthermore, while the game sometimes uses parentheses to indicate them thinking instead of saying their line, this is only very occasionally and most of the time it is left vague without parentheses or anything else to distinguish it like italics. I need more consistency!
*I encountered a glitch in the game early on that froze me and I needed to completely restart. Best guess is that the freeze happened when there was a line that had a pause inside of it: maybe something awry with how it is set up?
*The backlog doesn't function properly, both in how it should start at the bottom, not the top, and that if you try to scroll it, it'll close once you let go of the scroll bar.