Valeria Morales's senior year is off to a sour start. Her twin brother, Adrian, isn't talking to her, she's realizing all her friends were actually his friends, and now she's failing math. Enter Gage Magnussen. Gage isn't looking to take on any tutoring gigs now that his standing as valedictorian is at risk after letting a catastrophic breakup distract him - not to mention his demanding parents expect Gage to coordinate their yearly charity auction alongside his cheating ex. So Valeria offers him a deal: if he helps her pass math, she'll take over event planning AND pretend to be his girlfriend. A win-win-win! But as their study sessions move to deep conversations and their fake dates begin feeling realer and realer, is it possible the lemons they've been dealt will turn into lemonade? Or will this arrangement only sting?