"Eh, a choice to end the Game or, if we want to continue, accept being her servant for a week "
Yes, These are the choices WE make. We can see the big picture, But he can not.
All he can see is two choices,
A/ Either to go back home to the farm and carry on his life there or..
B/ Take a risk with this strange girl and see if he can carry on his life here.
He does not see an ending, He just sees two different paths.
After all this is a Visual Novel, And to be fair to TLG, we should at lease, try to see this world through the eyes of the MC.
If we are to only think about it through the eyes of the MC then why would he trust this complete stranger? The older sister of the asshole who doesn't want the MC there? Some obviously rich woman who, for some unknown reason, expects the MC to clean her house and "consider" whoring himself out to her and the other women in the house? ("Well, There's a bonus here and there if you go along with our requests.. Me and the other girls need to have some fun after all.")
The MC was reluctant to leave his home and come to the big city, the only reason he did was because his father was able to get him into the academy and he discovered that Ashley was there. In this day and age the MC and Ashley could reconnect on social media. The MC has never thought, even once, about what he'd want to do with an education. We don't know what he wants to do with his life at this point. All we've seen is broad ideas like he feels there is something more out there waiting for him...
Yes this is a game, or as you unnecessarily emphasized it "
Game", so I would like to see more of the MC's motivation for taking Adam's bullshit and accepting Jenny's servant job beyond the fact that it is a game and "cuz". I feel the prologue is the perfect opportunity to tell the players that the MC has always wanted to finish high school and study a certain subject... Music, Art, Biology, Sports Medicine, whatever...