A mysterious letter from 2169, the story begins.
Across the continent, time passes for hundreds of years, and all living beings are bound together.
Dana searches for the truth about love in the present and the future, in peace and war, in pain and happiness.
A letter from 2169
Dear Dana:
?? It started to snow again in December, and it snowed a lot this year. My child, forgive me for intruding into your life, and forgive me for the abrupt and unintelligible beginning of this letter. My life is about to reach its end point, and despite much hesitation, there is still a strange force pressing in my heart, prompting me to write this letter. How old were you when you read this letter? Hope it's not too late. My child, although we have never met, I am very familiar with you. You have smooth brown hair, sapphire-like eyes, and, I think you have realized, a photographic memory that is different from ordinary people. You don't have to care about other people's surprises, and you don't have to fall into the adulation of others. When you are young, you may often be deeply depressed, but dear Dena, please use the huge strength, potential and willpower contained in this body to make the right decision for you and find a path to happiness that belongs to you...
Intention: Find the truth of love in the present and the future, in peace and war, in pain and happiness