Daytime in the Bunker

As a young girl, Seo-woo turned down Won-hyeok, the boy who had once taken her into the shadows of a bunker. Now, years later, she is a high school student enduring a life filled with harsh solitude, and she finds herself pushed to her limits. During a moment when she contemplates ending it all, she discovers another deserted bunker and enters to seek refuge. However, her safe haven quickly transforms into a confinement when she is trapped inside by none other than Won-hyeok, who reappears covered in new blood.