Thanks for the feedback. A few of what you mentioned are things that are gonna get elaborated upon in future versions and/or chapters of the game, but imma address some of what I can without spoiling anything if I can.
For the negatives, the character design is really thin and gimmicky. The protagonist's odd appearance with white hair and two different colored eyes really detracts from the game. The two different colored eyes thing is really over done lately and has become a sign of lazy character design, especially when the colors are just nonsensical.
I mean that's fair and up to your personal preference. But there IS a reason why his hair and eyes are this colour. I won't spoil it, but let's just say that the story starts off as slice-of-life/daily-life kind of thing and will then grow into something else, in later chapters.
The pacing is rather comical and just terrible. The sister-who-is-not-your-sister complains about her five previous boyfriends being too quick to get handsy and more, so she goes from kissed to getting banged with a creampie in her first encounter with the brother-who-is-not-her-brother. Unless the game is designed to be extremely short, that doesn't leave much room for progression, let alone makes the (not-your)sister's backstory basically complete bs.
Guess I didn't make it too clear, just lightly implied it, but they had a connection and attraction before MC left for university, and this attraction just grew stronger as he returned (distance can make people more attracted to each other, that kind of mushy-lovey thing), and couple the attraction, the lust, quite possibly love (even if the love is in its early stages), them living together again and the MC quite possibly going on another long trip soon. I'll give this it to you, it was quick pacing, for two main reasons, one which will be tied to a story reason, and the other reason is cuz I didn't want to take too long to get to the good stuff, though I understand how this progression can feel jarring.
The backstory for the protagonist is also just odd. Who goes away to university for five years without ever returning to see their family? Even if it's long distance, international, on the moon, it just doesn't ring true. There needs to be some further, rational explanation.
Okay, I guess it's my fault for not pointing this out more clearly, but I personally come from a brown family, and in brown families, kinda like in the stereotype of asian families in general, there's a big sense of you bringing shame and disappointment to your parents when you fail in school, couple that with MC going to uni at 16, and spiraling into a form of depression, it left him not wanting to return home and confront his father because of how scared he feels. At least that's how I, and many people who grew up in strict brown/asian families feel in general when dealing with failure in school.
I won't even get into the neighbor, I skipped most of that part of the script because the set up was so implausible and forced, and it's odd that she looks younger than the MC, yet is supposedly married. The pacing again was really forced (first encounter in five years and instantly flirting to fucking). I also just found the neighbor's character design to be boring.
The neighbour's married but doesn't have any kids, and still hasn't reached her 30s, which would give some explanation as to why she looks young, she got married in her very early 20s. There's another reason as to why she looks young, but that will be for later.
If the dev isn't storyboarding or using an outline, that might help with the pacing. Character design is tough, you'll never please everyone and some devs fall victim to constantly revising their characters' designs. Ultimately it's your vision, but it helps if there is explanation for some oddities (like the MC's hair, you could say it turned white after the car accident, while he was in the coma).
As I said above, the MCs hair and eyes do have an explanation, it's not just edgy character design I swear lemao. I just don't want to spoil it rn, it's definitely gonna get an explanation in future chapters.
I wish the Dev good luck and am curious to see where the story leads.
Thank you, and thank you for giving me your feedback, I really appreciate it. I'm sorry that most of my replies to your points are "I'm gonna explain it later", but that's actually true, I have a lot of the plot points you brought up planned out, and since my game will be divided into different chapters, I plan to drip feed the explanations, MC background and character development throughout each Chapter. There's a lot that I wanted to just outright explain in the beginning of this chapter, but it would be too much exposition at one go. For the brown family thing, I plan to explain it a bit more when I'll introduce the dad, and for the uni thing I'm going to explain things by making the MC meet up with fellow alumni in future chapters to flesh out a bit more of the university years. I hope my explanation helped to give you a bit more perspective on how I tried to make/write things. I planned the story over several chapters, at least 7 or 8, and depending on the length of each chapter, there might be one or two chapters released a year.