Xiao Minghuang, the princess of Changle, and Yan Ling, the prince of Zhenbei, were childhood sweethearts, but due to a misunderstanding, they became a "couple of pure hatred". Xiao Minghuang thought that Yan Ling had betrayed the agreement and imprisoned him in the palace to "bully" him in every possible way. However, she unexpectedly saw a barrage that only she could see, and learned that Yan Ling had loved her deeply for a long time. The dark room was filled with her portraits and she was hiding her madness. On the surface, Yan Ling is disgusted and tough-tongued, but in reality, she is jealous and humble in love. After the crown prince's visit, an assassin's attack, and other turmoil, Yan Ling was seriously injured and on the verge of death while trying to save Xiao Minghuang, and the two finally solved their misunderstanding. Xiao Minghuang revealed his sincerity, Yan Ling also put aside her pretense, and the happy enemies finally became a loving couple.