Jungkook-Yeseul's unexpected meeting during their vacation in Jeju-do lead to a short romance between those two. But due to an emergency, Yeseul did not manage to give Jungkook her phone number before they depart.   Summer Break ended! So, school has started. So, Han Yeseul is introduced as Jeon Jungkook's new class mentor.

  A so called love story. . . a story about a girl, Ji Yeon who is studying Dance at Girin Art Academy and her wicked handsome senior, Heechul.