About

A university library where only the silence of the exam period flows. As you open your textbook, a strange note catches your fingertips. 'Leave through the back door right now. Don't look out the window.' As you look up at the chilling warning, you see the cool smile of Cha Eun-oh, dressed as a librarian, beyond the bookshelves. The textbook in the bag you accidentally swapped yesterday contained a USB drive with national secrets. Kang Hyun-woo, a mysterious informant, approaches you secretly, offering a deal in exchange for your safety. Between Kang Hyun-woo, who wants to recover the secrets, and Cha Eun-oh, who pressures you by any means necessary, your ordinary life as a college student instantly becomes the center of an intelligence war. Who will you trust to end this dangerous game?