I love this game! It took me a while to realise it wasn't meant to be a long playing game (mostly cause the drummer and the scientist only showed up about a minute before i headed to bed the first time so it felt like there was a lot more story) but even now i realise its not it has so much potential to be! I definitely have suggestions.
Autosave! though i know thats coming don't worry. then little animations, like lights being on in the city at nighttime and off in the day, or seasons so snow in the winter and maybe the city covered in flowers and vines crawling up the walls in spring and summer. Also that purple witch never came back in time for me to not get haunted which was pretty costly and irksome. Saying that though, i'd love to be able to have more positive interactions with the monsters and undead! I loved the little vampire until i realised everything i agreed to with him apart from getting a nickname ended up impacting me negatively. Same with the ghost, i thought maybe i could pay him to haunt my enemies but it just ended up making my people unhappy. Maybe if there was an undead kingdom we could have relations with? Or just more relations with other kingdoms, nothing really happened with my tree appeasment, or my army alliance once we'd helped them in battle, or with the merpeople apart from them asking for money to give to their god. Also more moral consequences - I've never so far let the shifty girl steal from the people for me because it felt bad, but i get the feeling that if i did all that would happen would be a loss of a couple of happiness, and i'm so good at keeping my people happy that this wouldn't have a great effect on me. I have let the chest eat people when i've been in debt from anti haunting rituals, which again should probably have had far more consequences than it did. Mainly more big stories and more consequences.
This would make for a great app though! Running similar to real time, with decisions lining up throughout the day to be completed either as they appeared or before the day resets. Also a little customisation, maybe a king or a queen model, with the ability to change the hair and robe colours from a wheel, something simple (well seems simple, i don't know about coding) but will really add an extra feel to the game. and decoration upgrades for the throneroom, just for when you have more money than you know what to do with!