Kim Dahyun has always been good. A good daughter, a good friend, and good at everything she does. She's never done something irresponsible in her life, she lives in the comfort of her safe choices. But all it takes is one night, one party, and one hot summer for Dahyun to realize that good is not enough. It only takes one Minatozaki Sana to show Dahyun that living inside the comfort of safe choices is not all there is to life.

Rich Lesbian CEO Kim Dahyun has been known all over Korea for not just her company, but for her looks and personality. She knows what she's known for and doesn't hesitate to use it for her own pleasure. She travels to Japan to fix her company but then comes upon someone who may change her life for the better. Will this person be able to change Dahyun? Or will she just be another of her one night stands?