Shen Ning was always good at pretending. During an important mission, she infiltrated a cross-border criminal organization, gained the trust of its leader, Rong Ming, and personally shot him in the heart. She thought her life had finally returned to peace and normalcy, but at a business banquet hosted by a TV station, she saw a face she could never forget. It was the same man. The former gang leader had now become a highly sought-after heir of a wealthy family. When they met again as enemies, Shen Ning realized that the only way to fight back was to risk everything she had—even herself.

Betrayed and banished to a deadly dungeon, a man uses his summoning power to call forth powerful female warriors. After building his strength for three years, he prepares to return topside and exact vengeance on those who wronged him.

One day, the protagonist realizes that he lives inside a "world of BL." As he likes girls, he fights back against any hot guys that might draw near, but this is a "world of BL".