Gyeono Kang, a lucky high schooler, used to enjoy the mutual love he shared with the prettiest girl in his class, Chanbi Baek. She was always all about him until an accident wiped her memories of the past year, and just like that, she no longer had feelings for him. But what about Gyeono, whose heart still beats for her? Is it even possible to win her back? Did she really like him back to begin with?! Somebody help!