Somewhere in present-day China, Mu Yi, a mischievous 14-year-old, lives with her beloved grandmother in a quaint and picturesque village, selling bamboo figurines to tourists. One night, Mu Yi discovers a very ancient helmet. As she tries it on, she transforms into one of the mythical war heroes of Ancient China, known as The Handsome General. This life-changing discovery uncovers terrible secrets that surround her birth. Resentful and angry against her world, she takes refuge in the new identity that the helmet offers her. Under the guise of the Handsome General, Mu Yi will go at war against the injustices of the past.