A guy meets a girl and they go on an amazing adventure together.

Jin Tian, a young woman who recently got dumped by her fiance and lost her grandmother, Chen Lanxin. Feeling heartbroken, she travels to Prague, the place where her grandmother once spent years of her life. In her grandmother's belongings she finds a letter from 1970. In Prague, Jin Tian meets Peng Zeyang, a young single father who lives with his daughter and mother. The two develop a mutual attraction during their journey on searching Josef Novak, her grandmother's past lover.

Jin Ying is currently experiencing two of life's most depressing moments: She is jilted by her fiancé, and her loving grandmother passes away. Heartbroken, she decides to visit the European city of Prague, and hopes to use the time to heal her inner pain. While in Prague, she meets a young Chinese man named Punk. There, she slowly unravels a secret romance her grandmother once experienced long ago.