nice game. i could play this for a while for sure. 1 major issue and a few things to talk about though.
1) having a cut scene as soon as the game loads is not the best way to start your games. don't show the cutscene until the user presses new game. this will fix future situations such as if they want to play the game on a saved file then they have to skip the cutscene each time it loads just to get to the title menu so you can continue your journey.
2) on The title screen, initially every button is a different color and when i hover over the start new game it turns from green to a gray-ish which is counterintuitive. suggest that all the buttons (excluding exit) should be the same or a similar color and change only when you have one of them selected/hover over it so its easier to know what you are clicking on. if continue option is disabled make it a darker color than the rest (you did this but all the colors are different so it doesn't show its disabled easily)
3) settings menu had a drop down for resolution but no options in it otherwise it seemed to be setup rather well.
4) when other characters are talking, either highlight / bold their name or try to put their name on the first line and their conversation on the next line so its easier to read what they are saying without figuring out where the end of their name is and the conversation starts.
5) find a way to organize the cards by name or rarity. feel like my character has ADHD with the way his cards are in a random order and i have to keep scrolling around to try to find what people are looking for.
6) when you buy booster packs from the store, it should show all the cards you gained visually and highlight or label the ones that are new to your character. scrolling repeatedly up and down to see if anything new gets cumbersome fast.
7) not sure if this is intentional or not. you cant open shop once a day ends by just interacting with the shop again. you need to step away from the shop and move back towards it to get into the shop again.
8) keep track of which character said what. it gets boring reading the same lines over and over without being able to do anything else about it but wait for them to finish talking. especially if they are saying the same thing time after time.
9) selling hellhound card caused the game to crash with an error code. not sure if it was that specific card or just a random occurrence. (this took place after i won the game and went back in using the continue button, dont think that has anything to do with it but want to give you as much info as i can about the crash)
10) restricting the max booster packs to 99 at a time sucks. i had way more money than i could spend and had to go in and out of the store multiple times to spend it all.
i completed the game on day 7 with 98 card. the concept is very fun. wish there was more interactions in the playground than just the loan shark kid. maybe you could have a way to gather people to go against the bully or maybe you could actually battle other kids with your cards. something else to do besides buy booster packs, sell the cards and pay off the loan shark kid would be nice. I love the aspect of haggling for price, that's a great mechanic in the game. i did come up with what i think is a decent strategy for earning as much as you can per day. ill keep playing to verify if my thoughts are correct or not. i was able to continue my journey after i paid the loan shark kid but using the continue button brought me back to before i paid him. if you have time, suggest to add some type of environmental aspect to it such as some days are sunny or raining or foggy so it changes things up a little bit. maybe a mysterious trench coat purchaser comes on foggy days only or a lost elderly couple visits on rainy days only. just some food for thought. hope you continue to work on the game and make it even better. was enjoyable to play what i could before it crashed.