At thirty this year, Lee Je-hee, standing at a crossroads in life, decides to change her timid self by enrolling in a yoga class, where she meets a woman who catches her eye. Unable to muster the courage to speak to her, she fumbles around and finally manages to make acquaintance, but as always, she ends up running away first. However, after that, an unexpected encounter awaits Je-hee at the swimming pool she chose as her escape.