𝐈𝐍 𝐖𝐇𝐈𝐂𝐇. Park Bo-Ra is everything everyone wants to be-intelligent, kind-hearted, and effortlessly attractive. But beneath her perfect exterior, she harbors a quiet, unspoken love for her long-time friend, Lee Cheong-San, a feeling that has lingered since middle school. Despite having all the attention of the boys around her, it's Cheong-San who occupies her thoughts, the one person who truly sees her for who she is. She's always lived her life through the lens of her camera, capturing moments and memories, but as the world around her begins to crumble in the wake of a terrifying virus outbreak, the things she once cherished seem so insignificant.
Her younger brother, Park Ji-Hoon, is the polar opposite. A straight-A student and an easy target for bullies like Yoon Gwi-Nam, Ji-Hoon has always been the "nerd" who struggles to find his place. Despite being overlooked by everyone, he's determined to survive, even if it means navigating the chaos with his head down and doing whatever it takes to protect himself-and his sister.
When the school turns into a dangerous battlefield and everything they've known begins to shatter, Bo-Ra must face not just her feelings for Cheong-San but the reality that survival is all that matters now. As Ji-Hoon tries to stay out of harm's way, the siblings' bond is tested, and secrets come to light that may change everything they thought they knew about each other and the world they once lived in.
In a world where nothing is certain, the only thing that's clear is that survival comes at a cost. Can Bo-Ra overcome her fears and confess her feelings before it's too late? And can Ji-Hoon survive the endless threats, both from others and from within himself?