For your first playthrough i would recommmend going in completly blind.
In terms of gameplay:
The game is primarily a visual novel. So a lot of choice you can make and lots of reading. The visuals are really beautiful and the OST aswell. However you can still walk around with your main character.
challanges you have to resolve with a card game, you aquire cards as you progress throughout the game. You also need these cards to complete different jobs. each month you complete a job(you can freely choose), or you can rest, which advances your stats that can also give you perks. It also advances the story in many ways I migth post a complete guide of the card mechanics in the future but don't let that i timidate you its quite eseay to learn by just improvising.
also its definitly a game that is intendent to be played multiblr times, esspecially if you want to know more about the world of the game.
In term of story:
Its kind of plays in a dystopian setting, however the colony itself outside of the planet being quite difficult to survive in and the colonists having their own personal flaws, try their best to be a utopia. there is also a lot of mystery on the planet.
you play through multible phases of sol's life from childhoot to early teens to late teens.
You also can have friendships with different characters and even romances and also sex(implied) . ,<----also all optional inrirely up to your choices
these thing unlock different stories with dicferent characters.
ok thid turned into a quick guide for some reason.
Its a great and creative game and has a lot of mystery. the characters are also quite complex and more than what innitialy things except vace he is just a dick.either way if you like visual novels and storytelling aswell as stories that change based on your choices deffenetly recommend that game
Also the game is very queer