When he was seven years old, he met her.
When they were fourteen years old, they fell in love.
When she was sixteen, she was murdered, and he vowed to find the real culprit.
When he was seventeen, he saw her again.
The epiphyllum with twenty-one petals, the story of twenty-one years, the moment the epiphyllum blooms, is the eternity of love...
Twenty-one years, just a promise made at the age of fourteen.