I played the game for quite awhile now and wanna suggest some things (these are my personal opinion)
1) Add some kind of character cards to be able to see relationships with them at any time, with also maybe some info about where and when to find them. Also would be nice to see MC's current stats
2) Add more specific tips/advises for the game quests (that Yuri mission took me a while ngl). Maybe even add a proper quest screen that would contain all the important info since most important dialogues cannot be replayed.
3) Either reduce skill grinding or make part-time job more profitable, since you can get about 300g per week by it, which is not that much. Yes, there is also job at Bar later on, but even though it's more profitable it's less time-effective imo, since you have to actually mix drinks (plus you have to memorize/save all the cocktail recipes) which takes waaay more time than working at hot dogs place.