Shen Zhiyao was forcibly taken to be his mute substitute because he looked exactly like school sweetheart Ji Yu'an. The silent young man struggled in the cold disguise, but unexpectedly ignited Ji Yuan's long-extinguished inner fire. When Lin Wu, his first love, quietly returned, art president Zhou Yantang handed him a paintbrush, fiancée Su Man secretly helped, and an old letter from school doctor Chen Mo quietly surfaced - is the identity of the stand-in a redemption, or a deeper prison?