You were born with cancer so your parents took you to an orphanage and Jungkook took you and ran away. He was also a boy in the orphanage and kept taking care of you. Now you are 20 and he is 25. You confessed your love to him, but he quietly rejected you. You are now back home happy because you succeeded and you were excited to tell but when you entered Jungkook's room you saw him kissing a woman This made you sad, but you acted naturally.