When you turn 18, you and your soulmate are able to speak to eachother through thoughts. Chloe Beale comes from a family without soulmates. They had just married random people at first. Imagine her surprise when she hears a voice in her head on her 18th birthday. (idea from tiktok, just changed it up a bit, characters aren't mine, they're from Pitch Perfect)

Beca just finds out her best friend, Jesse, has a big sister who is visiting for the summer break