Kwon Yuri is a normal girl in school. She’s not the popular, not the geek, not the Goth. She’s just normal. Her life was always happy and full of smiles. She may not be bright in terms of studying but she’s bright when she’s with her family and friends. She’s an only child and always wishes for siblings since she was 8 but figured out that her mum can’t get pregnant anymore when she was 16 due the complication of giving birth to Yuri. Her parents are always supportive of her and loves that their daughter is always optimist.  Yuri had a close guy friend when she was 6 years old called Seunghyun. He was fat and was always bullied but Yuri would play with him and protect him from the bullies. The two of them always play together in school until one day when 11 year old Seunghyun didn’t go to their usual park. It turns out he left without even telling her. Yuri really likes Seunghyun. He was funny and good looking in Yuri’s eyes. Yuri was really sad and didn’t eat for days because she missed him but she met new friends called Yujin and Yunho. The three of them call themselves the Yu friends. She moved to Seoul during 2^nd year in middle school with Yujin and Yunho and has studied there for 2 years. She’s currently in her 1^st year of highschool.

Seunghyun(TOP) is the popular boy in school. Ever since he was bullied when he was young, he always wanted to lose weight. After moving to Seoul, he watched his diets and exercise. Ever since middle school, girls had been drooling over him. He was hot. Very hot. Guys envy him and girls want to be his girlfriends but he never laid his eyes on them. His charismatic self was his charm and he was always serious in school. People rarely see him smile but if he did, it is once in a life time. He has a group of friends, Big Bang, who he usually hangs out and they’re the only one that knows his true self which was a dorky and funny guy. He acts serious because he doesn’t want people to bully him. He’s currently in his 1^st year of high school.

Yuri and Seunghyun have never met each other in school because they’re from different crowds.