Irene Park loves romance novels—so much so she’s made a career of them as an online book reviewer with a massive following. But Irene’s real life dating story? Non-existent. So when she starts her freshman year of college, she sets her sights on finding true love using the one thing she really understands…romance book tropes. If only it were that easy. Enter Aiden Jeon, Irene’s online book review rival and biggest nemesis.

Eliza Park’s senior year will be perfect: She’s going to be salutatorian, give a tear-jerking graduation speech in front of her parents, and enjoy her last year with her equally ambitious best friends. But when a scheduling mishap enrolls her in Culinary Arts, Eliza is suddenly the most clueless person in the class. Her typical title of star student belongs to the aggravatingly arrogant Wesley Ruengsomboon, a charming Thai American boy whose talent in the kitchen leaves Eliza both awed and annoyed.

Phoebe “Phibs” Ray is never more at home than when she’s underwater. On a dive six months ago, she and her four closest friends discovered a handful of ancient gold coins, rocketing them into social media fame. Now, their final summer together after high school, they’re taking one last trip to a distant Australian island to do what they love most – scuba dive.

Love may be the best medicine, but first-year resident Grace Rose isn’t prescribing it anytime soon. Not since her ex broke her heart in med school, and especially not since hearing the rumor that she slept her way into the OB-GYN program. (Spoiler alert: So not true.) With her social anxiety already in full spiral, Grace is determined to set the record straight. But after a tense first encounter with fellow resident Julian Santini—with his annoying good looks and witty charm—she realizes that her reputation may never fully recover.

Aria Patel likes stability, certainty, predictability. It’s why she’s so into science. It's why she dumped her boyfriend before they went to different colleges because the odds were that something would go wrong, eventually. In a life that’s already so chaotic, why obsess over complicated relationships and shadowy unknowns when the scientific method gives you direction and a straight path to avoid all the drama. But there’s no avoiding anything when Aria finds herself suddenly falling through parallel universes and there’s no formula that can save her.