"When we grow up, you're gonna be my wife!"

It was just a simple childhood promise.

Years later, you've grown into that awkward distance—more than friends, but less than lovers. Two childhood friends drifting in an ambiguous space.

Then one day, you are told you have only one year left to live.

What will you do with the time you have left? Search for a cure? Make countless memories? Or simply continue your unchanging daily life until the very end?

In the midst of it all, you suddenly remember. That promise from those early days.

"Hey... will you still make me your wife in the next life?"

Because death is certain, falling in love is terrifying. Because they are precious, being by their side is painful.

This is a story of you, granted one year of life, and your childhood friend who once promised to marry you, as you spend your days laughing, fighting, and searching for a way to survive.

—In the end, will you choose a miracle? Or...