Synopsis:

Soo Jung is an average high school student with an optimisitc, bubly personality and lives a normal high school life. Soo Jung who never seen her parents when she was young, she lives with her aunt that took care of her as she grew up. At Soo Jung's 18th birthday, an old woman came to their house claiming that Soo Jung is her granddaughter. Soo Jung will face a new wonder as she is the only granddaughter of one of the richest woman in the country and unexpected spark as she meets the three gentlemen.

Main Characters:

Soo Jung/Krystal

Soo Jung is a senior high school student with an optimisitic, bubbly personality who lives with her aunt. When one day, her life seems to be ordinary will change as she meets her grandmother whom is one of the richest and respected woman in the country. Soo Jung will struggle to fill in the shoes as she is the only granddaughter of the well known woman, and complicated situations as she meet the three gentlemen who will make everything more complicated.

Min Ho

Min Ho is one of the three gentlemen, who is a candidate to be Soo Jung's fiance. Min Ho is an athletic person, and very popular among girls. Min Ho is known to be competitive especially to his field and that is sports. Min Ho is known to be the charistmatic prince among the three gentlemen. Min Ho is a type of person who likes challenges and open to different opportunities. 

Myung Soo

Myung Soo is also a member of the three gentlemen, who is a candidate to be Soo Jung's fiance. Myung Soo is a quiet person but popular among girls because of her prince-like features. Myung Soo likes photography and playing the guitar, that makes a girl fall in love even more. Myung Soo doesn't talk to much but he lives by to "actions speak louder than words". Myung Soo is known to be the ice prince among the three gentlemen.

Jong Suk

Jong Suk is one of the boys that composed the three gentlemen, he is also a candidate to be Soo Jung's fiance. Jong Suk is known to be a model and the tallest among the three gentlemen. Jong Suk is a bit arrogant but it adds to his charms especially when he smiles. Jong Suk is to be considered to be the eldest and the big brother among the three gentlemen, he is known to be a happy go lucky guy. Jong Suk is known to be the lucky prince among the three gentlemen.

Additional/Minor Characters:

Sun Young- she is Soo Jung's best friend since they met in elementary, she is an optimisitc person, very talkative, she is a type of person who isn't shy and go with her luck and sometimes she over react to some things. She knows Soo Jung very well. She is a big fan of the three gentlemen.

Hye Ju- she is Min Ho's cousin and  a childhood friend of the three gentlemen. She is a feminine and quiet person. Hye Ju is Myung Soo's best friend and first girl that she admires who shares the same interests like music and photography. 

Jung Joon Young- is Soo Jung's classmate at Sungkyunkwan University. Soo Jung will have a hard time because of him. Joon Young is the university's resident flower boy who captures the hearts of girls because of his musicality  Joon Young is very stubborn and likes to do what he wants and doesn't care sometimes. 

Ms. Song- she is the person who took care of Soo Jung as grew up. Soo Jung called her aunt Song but she treats her more of like a mother.

Grandma Jin- Soo Jung's grandmother, she is a well known woman because of her successful businesses. She is a kind grandmother and she find ways to introduced the three gentlemen to Soo Jung.

Carl- personal assistant of Grandma Jin, he is a skinny guy with glasses and often talks in a formal tone.