Inspired by the love poem A Birthday, by Christina Rossetti, the film takes place close to the Birthday of Ron, a nineteen-years-old girl who is deeply in love with May, her best friend. A short time after Ron moves from Taipei, May decides to join her in Berlin. The love between them is strong but contrasting: Ron does not openly tell May her feelings but May is conscious of what she represents to her friend. Nevertheless she keeps enjoying her life, taking all she can from Ron until she takes too much. Her choices lead both girls to face who they are and how they might live life to the fullest.