6 years ago, when Hana was 12 years old she moved away from Korea to live in Hong Kong.

6 years ago, she harbored a crush on her classmate, Kim Donghyuk. 

6 years later, she still remembered him

Introduction:

Hana and Donghyuk never had any long proper conversation before, but every time she needed help - he was there. For example, when her family was experiencing a financial problem; he had found her sitting at a bus stop late at night crying, and offered her his handkercheif and shoulder, in hopes to comfort her. There was another time when she was sick for a couple of days, he had made sure to drop by her house to give all the assignments and classwork that needed to be done. When Hana sat by herself in a lunch table, the chairs beside her were empty but moments later she saw the empty chairs were being replaced with Donghyuk and his friends. Though they didn't talk much, Hana was greatful to have a bit of company. She felt touched by Donghyuk's actions, never had she experienced so much attention. Being the introvert she is, Hana rarely talked with others. She found it hard to talk to people without hesitating or stuttering. Yes, she has had a few friends before, but she felt uncomfortable with them; she had a tough time trying to engage in a conversation; all the words became stuck in - so she settled to swallow the awkwardness. They didn't pay much attention to her, so she just left the group. There isn't a lengthy explanation or reason as to why she keeps to herself, she was just like that. Hana needed friends that could understand her without the constant need for them to be there, but somehow Donghyuk was assimilating himself in that spot. During the course, she bgean to harbor feelings for him. Before she left to Hong Kong, Hana had taped under his desk a small piece of paper that held the words in cursive, 'Thank you...I like you.'

By the time he found the piece of paper, she was already gone. 

Its been 6 years and Hana returns back to Korea for her last year of high school. So what happens when they meet again in the same school?

[Donghyuk x OC]