During early Chinese history in the State of Northern Qi, it was said that there was a warrior prince who possessed the beauty of a woman and wore a fearsome mask in battle in order to instill fear in his enemies. His name recorded in history is Gao Changgong, but here, his name will be Zhang Yixing. When a fearless woman runs onto the battlefield during one of the prince's battles, he never imagined how important she could become in his life. This story is based (very) loosely on the life of

  In which a single summer in Derbyshire becomes a learning experience for the people involved.  In which Wonshik finds his love is not who he expected it to be, Taekwoon struggles with coming to terms with his past while finding he can love again, Jaehwan parts with a long standing affection, Minah learns how society influences lives in a way that's complicated and Haneul learns that sensibility is harder practiced than preached.