Yuna has a distinct attribute that sets her apart. Since she was a child, she has been blessed with an unparalleled stroke of luck. Her peers often approach her for help with their love lives due to her good fortune. Even though Yuna is an orphan, she maintains her happiness. With her brother at her side, they face all obstacles together. But, one day, Yuna meets a mysterious and captivating young man who demands that she give up the only item left to her by her mother.