There is an apple tree in Su Xi's yard. At its very top grows a bright, vivid red apple...
An apple she has tried countless ways to reach, but has never managed to get.
Through countless scorching summers and bitterly cold winds, she has sawed wood, built ladders, and tied ropes... She tries every year, and fails every year.
Until one day, when she is twelve, she receives a letter.
A letter from the future.
Theme: Overcome every hardship and impossibility.
