Chaeyoung asks for Nayeon's help to win Mina over and offers to help her get with Jeongyeon as a return favour. A story where a series of mixed signals complicates things for four girls.

Mina is like a boat at the sea, a girl who finds beauty in the ordinary. Nayeon is like the storm, wrecking everything in her path, including her own life. They're not meant to meet. The storm isn't meant to shatter the boat and break it into more pieces that can be counted. But they do. In which Mina and Nayeon are forced to navigate 365 days of marriage together because of a drunken night in Las Vegas.