Quoting the person below me; " this game has the warmest story for a ren'py game i have ever heard even if the game about coldness it feels warm" because it sure it. She is just that cute!
A few thing to critique,
the volume level of each bgm are huge , one is low and the orther are too high, so try to optimize the bgm.
for the story line i felt it kinda a bit rush and full of "holes" and if i were to take the true ending first , the mc went to places that i didn't even visited yet.. like the basement . you should either skip that part where mc check the basement if he didn't visit them yet, or you could route lock to other false ed first before going to the true ending.
but overall the world building and waifu model are a 10/10, there's still a lot of mysteries and if you don't mind explaining who's that girl to the mc? either way keep up the good work! Followed!