Myoui Mina enjoys playing games, but most especially this arcade game that could potentially let her win the penguin plush she had always wanted ever since she laid her eyes on it. But the next time she decides to play again and be the most passionate she's ever been, she finds out that someone else had already won the plush. Little did Mina know that that someone actually won it... for her.

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.

Mina kickstarts her career in education as Seoul Arts High School's new English teacher. She's assigned a class of third-year students, and has to prepare them for their college entrance exam at the end of the semester. There, Mina meets a rather interesting senior student by the name of Son Chaeyoung. She's incredibly intelligent but introverted, withdrawn, and doesn't socialise well with her peers. She also loves to doodle in class. Mina becomes interested in Chaeyoung's strange ways, wanting to help her in any way she can. Special thanks to @j_snrkj (twitter) for the cover!

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.