Goodbye, my love Kyungsoo-ah

"The true soldier fights not because he hates what is in front of him, but because he loves what is behind him." ― G.K. Chesterton

War - a state of armed conflict between different countries or different groups within a country.

In 1954 - Celles town was colonized by the next door country because of the town was rich with the oil and gas source. All the soldier of the country fight till the last blood to preserve the townsfolk. Most of the innocent residents became the victim and killed by the colonist.
D.O, a blind perfume maker only could stay in his house while hearing the war that kept ragging on. He was one of the great perfume maker in the town because he had an amazing smelling ability after the incident.
He fell from the mountain because he tried to commit suicide, as the result, he was coma for 2 years and his cornea was badly damaged. In that two years, he almost forgot about his first love, Chanyeol. 

Three years before,

Chanyeol decided to join military because he wanted to be a soldier, but D.O didn't want him to go. D.O begged for him, but it didn't work. Chanyeol still wanted to work because he knew that he will meet D.O three years afterwards. Then, he always sent a postcard every month to D.O. D.O only replied the postcard for first 3 months, then he couldn't reply the postcard because the incident - But Chanyeol kept sending the postcard.In the middle of war, Chanyeol and Kyungsoo met once again.In order to survive, they have to pass the border of the next state before the dawn.

Will they survive together or alone?