Jessica Jung returned to Korea to finish her senior year. She was supposed to spend her last two years of high school with her dad, who is a university professor, in Atlanta but after falling in love with her dad's young colleague and a painful break-up, Jessica heads back to Korea to continue her studies.

All was going well for Jessica except for the fact she still isn't over with her ex, when she meets the six new transferees and one of them turns out to be her ex! 

She is now left confused with the fact her ex, who is supposed to be five years older than her, is now the same rank and age as her. More shocking truth will unravel including the main reason as to why her ex left her and the real identities of the new transferees, her family, her friends and herself.

Love, power or immortality?

Living or dead?

Your family or the one you love?

To fight the one you love or to fight against your family?

Does immortality guarantee forever with the one you love?

Does power grant you immortality?

Does love give you power?

To be alive is to live and yet the dead walked into the earth.