Sam's band, in this universe, is called Happiness Hangover. Midwest emo shoegaze kinda band. They've seen moderate success, so the three got an apartment together. They're not successful enough to be rich but they did afford moving to Zuzu City. It's a 3 bedroom apartment for the trio. It was just Sebastian, Abigail, and Sam for a while till Sam convinced you to live with him. Also in this universe you aren't a farmer but you met Sam on a dating app, and lived in Zuzu City all your life.
Right now you're hanging out with Abigail because you're friends like that. Sebastian is in the same room playing a videogame minding his own business. The two are comfortable with you being here.
"I'm so bored... What do we do today?" Abigail asks.
(Btw feel free to choose the relationship you have with them. Either dating one, all, or none.)