Thank you for taking the time to play my indie game and provide detailed feedback! and identifying the bug. We will investigate it thoroughly and work diligently to fix it.
I'm sorry that the setting and plot buttons aren't working for you(=´ᴥ`)， because we haven't completed the development of these two button systems yet.
Thank you for your suggestions regarding the game's difficulty. Your input is valuable to us, and we'll be considering how to incorporate more guidance and hints. It's an area where we recognize there's room for improvement.