We all have fears of our own. Most fear of heights, others fear of bugs and some fears of riding an airplane. Soojung is afraid of riding an airplane, not just a normal airplane; an airplane called love. She meets a man named Jongin on a subway she always rides and finds herself falling for the latter. Question is, is he feeling the same?

Jongin is a freelancer, he does anything that he wants whenever and wherever. Meeting Soojung, the girl who always organize herself and make plans beforehand starts to take a toll at him. He starts to see life in a different light. Question is, will he change for good?