To avoid an unwanted imperial marriage, Yun Qianyue hides behind scandalous rumors and lives in disguise, secretly devoted to the ailing Rong Jing. When she risks everything to cure him, she draws the dangerous obsession of Emperor Ye Qingran, who poisons her to keep her by his side. Even stripped of her memories, Qianyue fights against imperial control as her heart refuses to forget her true love.