Has some potential with a nice asian school / slice of life feeling. Imo it doesn't deserve the 1* rating since there are far worse games. However i would like to make some improvement suggestions:
1) Too much "game over" content: Basically there is one path, going left or right of that and its game over. And its not instant game over, but content+game over. If you have barely any content (yet), its unfortunate to hide the little that is already there behind a fail state.
Example1: The only sex scene with the MC is very hidden: you have to ignore the "ad girl" in the city -> only then she offers sex. If you do accept the offer you get the sex scene - but also get game over in the same night, since you cannot pay rent. Hiding the only sex scene for the MC so far AND making it cause a game over seems like a bad idea.
Suggestion1: Start the game with enough money so the player can afford this scene AND pay the 1st rent. Maybe the ad girl could make her offer even if you go with her since most players won't even notice the scene otherwise (seems more intuitive to get her offer during a walk&talk than after the MC ignores her)
Example2: Going to the girls toilet has an interesting scene but also instant game over.
Suggestion2: I would add a dialogue "Damn, i cannot go in there while i'm being watched" and maybe remove the watcher on another day, or talk to the watcher?
2) English: Obviously that's hard to get right if you are no native speaker. And honestly, its good enough to understand what is going on - thought it would be far worse based on comments. But a free spellcheck program (e.g. in Libreoffice) and a free text improvement program like Grammarly might help.
3) Intro & background clarification:
* Why can he just leave home as a minor without police or child protection services intervention. Maybe make him leave as soon as he turned 18 unless that's important for the story.
* How can he afford it? (trust fund, savings?)
* Why is his father remarrying such a problem - was the new wife that bad, was his father remarrying directly after the burial or did something else happen?
* Basketball proficiency: No matter how rich you are, that won't get you to play with NBA players - if they wasted their time playing with kids, they wouldn't be in the NBA. Maybe he went to an elite school that had a former NBA player as a trainer and/or a highly ranked basketball team.
4) Remove non-choices & make choices more descriptive: There are several choices that are not really choices - e.g. why offer to "wait in class" or "go somewhere" if the first choice loops back (no content in loopback) until you choose "go somewhere". Also, it wouldn't hurt if the choices would be a bit more descriptive. Examples: "go somewhere" -> "have lunch with your friends" or just "go for lunch". "Spend time" -> "spend some time in <location>"
Cheers & all the best with your game!