Main Characters :

•  Byun Joohyun | Seohyun
• A cheerful person, but it all gones when someone came to her lifes.
• Don't really like her older sister, Nana
• Have a feelings toward Suho

•  Kim Joonmyeon | Suho
• A handsome kingka, but sometime means towards someone
• Don't think twice before doing something
• Have a feelings toward Nana

•  Byun Jinah | Nana
• A pretty sister, but likes to takes someone's lover
• Trying to be closer with Seohyun just for know about Suho and Luhan
• Hates Seohyun so much but she just pretend that she loves Seohyun so much

•  Luhan
• A handsome and cute person, till many people said that he have a baby face
• From Beijing, China
• Have a feeling towards Seohyun

Minor Characters :

•  Huang Zi Tao / Edison Tao 
• A strong person, he is active at wushu
• He is half Korean half Chinese, his mother is Korean person while his father is Chinese
• Have a feeling towards Seohyun at the first meet

•  Byun Baekhyun
• Seohyun's and Nana's little brother, 16 years old
• He is a good boy, who will always listens to his family
• Really loves Seohyun than Nana because Nana is their step sister

•  Jung Soojung | Krystal
• Seohyun's bestfriend since middle school
• She really takes care about her bestfriend
• She is cute person, many peoples like her

•  Park Chorong
• Seohyun's bestfriend since childhood
• She really understands Seohyun's feeling
• She don't likez Suho, the way he hurts Seohyun's heart