Bae Eunmi is the new girl in school and the schools new gossip topic after finding out she was multi-talented and being born and raised in Japan by a rich family. She was a very talented girl. She was never into boys but after Jungkook laid eyes on her, he was willing to do anything to have her. 

After the numerous amounts of times Eunmi rejected Jungkook, he finally asks for one year. One year, or at least until school is over. One year to make her fall for him. If by the time Eunmi still hasn't fallen for him by then, he'll completely ignore her and leave her alone. If she does fall for him, then he's hers.

And Eunmi gladly accepts the bet, not knowing what she was getting herself into.