Yu Eunwu, the “trophy” of the conurbation army, is dismissed from service and ends up being sent to the central academy. There, she meets the president of the dispatch department, Seo Jaehee, and a former soldier, Jeong Yunhwan, who used to work for Yu Eunwu’s past guardian. Seo Jaehee offers to protect Eunwu while she’s at the academy in return for access to her memories, while Yunhwan seems to be out to get her for some unknown reason. Not a day goes by in peace in the academy, and all Eunwu wishes for is to fix her shortcomings and return to the army. But in an age of despair where the truth is concealed, these three people are swept up in an ominous prophecy.