Jinyoung meet a mysterious grandmother and tell that he will meet his soul mate and bump into that person. But Jinyoung bumped into two people at the same time. Then who's Jinyoung soul mate? Should Jinyoung believe the grandmother he didn't know?

Jinyoung missed Mark, Mark felt the same way

Park Jinyoung is Mark Tuan's enemy since he was a freshman. Without the boy knowing, he became an experimental material for the formula Youngjae made. What happens if now his attitude changes 99% to the rival?

Jinyoung thought that when he was adopted as a child, his life would be better. However, that thought was lost when he met someone who was annoying at his new school.

Sometimes the heart know things the mind could never explain. How beautiful is it that someone could make your heart beat so fast when you don't want it to beat at all!?

You never know what you have until you Lose It.  Once you Lose it.  You can never get it back..

Jackson finds a letter which it invites him to dance party in the school. Mark who read the letter the pleasure of seeing his brother get a letter from a secret admirer. Who is the secret admirer?  "Jeez!!! You never told me you had a secret admirer!"