When Daehyun is injured in the trenches during World War 1, he learns that he has only 31 days to live. Son Naeun, his special nurse, ends up falling for him. They both discover time is not on their side. But does time really mean anything in the end? 

The unbecoming of youth only blooms for a little while, but people often take it for granted. Still, it's never too late for there's more room to grow, more time to mature, more paths to live recklessly - even to fall in and out of love. After all, this will be days where every little thing matters - how a careless word would linger, how a look, a glance over the shoulder would feel everlasting, and how a genuine smile

On 10 February 2018, a group of K University students went to a 3-days-2-nights membership training (MT) that was held on an isolated island at the east of the country. However, a lightning storm attacked the state and the island was one of the most badly affected places. Even though the weather forecaster already predicted the unpleasant weather, they still continued with the plan since the storms would be subsided after a day or two and their activities didn’t involve the shore.

They were 16 when they were engaged as they are in an arranged marriage by their parents who were best friends. They will be married when they become 21. Hayoung does not like him one bit, she only has pure hatred to him, however, Zelo like her when he first met her and in fact, obsessed with her. Hayoung have been trying to escape from him before they officially married in 5 years’ time. Will she be able to escape from his trap? Or she will fall in love with him instead?

  Isn't life full of coincidence? Like how she met him, and how their story began.