Kim Taeyeon, Taeng (Male), 22 yrs old / Born in South Korea, Jeonju

Character: Quiet and Independent / CEO in Kim's Corp - the next successor

*Parents passed away when he was only 5 years old, brought up by his Uncle Sam - Kim Bum (younger brother of Taeyeon's father)

*Met Tiffany and become soulmate but kept his identity from her, until one day when Tiffany knows about his real identity....

Tiffany, Hwang Miyoung (Female), 22 yrs old / Born in USA, California

Character: Friendly, lovely and cheerful (serious at work) / Magazine Chief Editor in Kim's Corp

*Mother passed away when she was only 10 yrs old, she came to Korea and stay with her favourite Aunt Eun (younger sister of Tiffany's mother) after she graduated.

*Met Taeyeon and become soulmate - not knowing that he is the CEO in her company. Until one day, she found out about Taeyeon real identity.... 

Kim So Eun (Female), 45 yrs old / Open a cafe in Seoul

Character: Gentle and loving - looks younger than her actual age

*Pretty Aunt of Tiffany / Had a past relationship with Kim Bum, her only love but unable to forgive him.

Kim Bum, Sam (Male), 45 yrs old / VP in Kim's Corp

Character: Charming and dreamlover to all girls - looks younger than his actual age (one of the most eligible bachelor)

*Handsome Uncle Sam of Taeyeon / Had a past relationship with Kim So Eun, his only love, unable to forget her.