Jung sisters Jessica and Krystal have slightly more difficult lives. Their parents have divorced and both live separately. Krystal lives with her mother in Korea, while Jessica lives with her father in California. They both share their experiences and stories through internet sites. Both understand each other well and their meeting after ages follows soon, when Jessica is about to visit her younger sister and mother.

Jung Jessica is a 20 years old student at a designing university. Jessica is in a relationship with her high school love Daniel Hanney. She mostly lives with Daniel, beause her father brought home another woman, which are going to engage soon. Jessica is unhappy, because she sees her sister barely and she falls in love with her schoolmate, Tiffany...

Jung Krystal is 16 years old student at a public school, where she is an straight A student. She is pride to her mother and she loves to make her proud. Krystal is very talented in singing, dancing and is very popular among her friends. There is a new student at the school, which is two years older. She is the first to even fall for that someone, what brings amazing confusion, catastrophy, love, romance and pain in her monotone life...