Minju is top of her class, quiet, focused, and allergic to school drama. Noh Yunah is everything she can't stand: popular, loud, reckless... and rumoured to leave a different girl heartbroken every week. When Minju is forced to be Yunah's lab partner, she expects the worst. But behind Yunah's smirk and reputation is someone unexpectedly thoughtful and deeply insecure. The more time they spend together, the more Minju starts to question what she thought she knew about Yunah. And Yunah? She's already fallen. She just doesn't believe someone like Minju could ever feel the same.