Na Young Hee, 57 years old, wife of Kwon Hae Yo, a mother of one, with stoic expression and fiery spirit inside a warm and loving character, loved his step son with all her heart and soul. His step son was everything in the world for her, who couldn't have a child of her own due to her total hysterectomy surgery when she was 35 years old.

Kwon Minki / Ren, 22 years old, the only son of Kwon Hae Yo, 4th year university student majored in Multimedia Department who loved to spend his time editing videos and travelling. A cheerful and moody person who has pretty face, both hated and admired by his seniors in university, and has a special concern towards the world and around him.

Bang Yongguk, 27 years old, senior in the same university as Kwon Minki, designer of teenager's apparel and songwritter/composer/producer, who successfully inspired his juniors to follow their dreams in Music department at same university with Minki, known as friend of Kwon Minki and has protective side over Minki.

Kim Nahyun, 22 years old, attend the same university as Minki majoring in modern dance, Minki's close friend, has a strong character and always pick a fight with Minki but truly love Minki like her own sibling, have a crush on Yongguk.

Beautiful is more than word to describe : Mother-Son relationship, friendship, unrequited love and an unfinished true love.