U-Know Yunho

·         24 years old guy, Leader of DBSK

·         Married to Jang Ri In in an arranged marriage

·         Waited so long for Jeon Ji hyun, his first love

·         A faithful son, however he was trapped in his feelings, between his parents or his love to Ji Hyun.

·         A man with principle.

Jang Ri In

·            20 years old girl, a student and a freelance photographer.

·         The Jang family is one of the richest family in Korea, but she never being forced to study business like her other siblings.

·         She noticed her parents always abandoned her since she was child, not in material, but in love and affection.

·         She falls in love with Jung Yunho since they were child, Yunho’s grandfather and her father knows each other for ages.

·         Keeping everything to herself, including her feelings to Yunho since her sister, Jin Young envy her relationship with Yunho.

Grandfather Jung

·         A 70 years old man, respected because of his high principle, and he is also one of the richest in Korea few years back, but for unknown reason, he donated all his wealth to live in a simple life.

·          He is the one who arranged the marriage between Yunho and Ri In, even though Yunho’s parents really like to have Ji Hyun as their daughter in law.

·         He knows all the truth about Ri In’s past life, and after years taking care of Ri In from afar, he decided to married Yunho with her, not only to protect her, but also to give her love that she never had before.

Kim Jonghyun

·         He loved Ri In unconditionally, and in the same time he is also her best friend.

·         Jonghyun is a trainee in SM, and was waiting for debut with SHINee. He knows Ri In is already married but he didn’t know with whom she married, since the marriage between Yunho and Ri In need to keep as a secret.

·         Keep hurting and pushing Se Kyung away, the girl who always stalking him day and night, but at the same time, loving him with all her heart.

Jeon Ji Hyun

·         A 25 years old woman, An actress and Yunho’s first love. She likes Yunho at first, but since she debuted before Yunho, she feels like it won’t bring any good for her to continue dating him. But she never hurt his feeling directly, over the years, he kept giving him hope that ‘if we are meant to be together we will be together’.

·         Yunho knew she dated many guys after him, but she said to him that it is just for giving him some space and chance to find other girl that may be suit for him.

·         Trying to make Yunho fully hers when DBSK’s popularity in Japan was beyond expectation, and when her acting career starts to be in shaky state.

Jin Young

·         She was at the same age of Ri In, it is just, Ri In was born at the end of the year while she was born at the first month of the year, making her as Ri In’s older sister.

·         She hates Ri in since child, since her father always allowed Ri In to play and do whatever she wants-not even ask her to study. While Jin Young, she needs to be perfect in all criteria.

·         Head over heels for Yunho, and her rage towards Ri In was added up when grandfather Jang choose Ri In for Yunho.

Mr. and Mrs.Jung

·         Even though they didn’t like their only son being matched with Ri In, they never treat Ri In badly. A supportive parents, and live their life with principle.

Jung Ji Hye

·         Yunho’s younger and only sister, she only wants for her brother happiness. At first she dislike Ri In for coming in her brother’s life, but later she grew fond of her, and starts have feelings that Ji Hyun is not the girl meant for her brother.