Jessica doesn't know Yuri.

Yuri never met Jessica.

Jessica only needs Tiffany and her other soul in her life.

Yuri has vowed to only love Yoona, and Yoona only.

What will happen when these two people that never knew each other's existence finally met under some circumstances?

What will happen when they are forced to get married when clearly they don't have feelings to each other?

Will they continue with the plan and forget about their loved ones?

What exactly LOVE means to both of them?

* Jessica Jung Sooyeon, fifteen years old, high-school student

* a dumped baby, Jung's family adopted her as their daughter

* Tiffany Hwang's girlfriend since they were thirteen

* saved a dumped baby from the dumping site and takes care of her, naming her as Krystal Hwang Soojung

* lives with Tiffany at a rented house

* Tiffany Hwang Miyoung, fifteen years old, high-school student

* has a bubbly and easy-going personality but intimidating when she's serious or in her foul mood

* fell in love with Jessica ever since she saved her from a bullying incident during their first year

* willing to take Krystal into their lives because she understands Jessica's pain

* Kim Taeyeon, fifteen years old

* Jessica and Tiffany's neighbour

* helps to babysit Krystal during the lover's school hours

* quits school after an incident and experiences trauma ever since

* willing to help Jessica and Tiffany as she thinks she owes her life to them

* Kwon Yuri, twenty years old, works at a cafe

* her family runs a business and becomes one of the most successful company in Korea, Kwon Corporation

* refused to help managing the company as a sign of rebellion

* madly in love with a bartender, Im Yoona

* Im Yoona, nineteen years old, a famous female bartender at a club

* Yuri's girlfriend but their relationship doesn't get blessing from Yuri's family