Im Yoona:

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"Why are all doing this to me,what have I done to deserve this?!?"

• Childhood friend of Jimin,V, and Jungkook
• 23 years old
• The daughter of the owner of Im Company,Korea's biggest company,also,the Younger sister of the boss of  Im Company,Im Yoongi
• She is a beautiful, kind, caring, considerate person for the girls,every girl would dream to be like her
• She is in charge of the trading group,she don't take advantages of her status,she work twice as hard as other employees
• Many boys,different ages, have fallen in love with her due to her great personality,her smart brain,breath taking face, and her good in shape body
• Although she is close to perfect,she has one weakness,she is too soft and slow in anything that is related to love

Park Jimin:

"Hey noona, don't look at me as a boy, look at me as a man."

• Childhood friend of Yoona, V and Jungkook
• 22 years old
• Every men's enemy-He flirts with every girl he set his eyes on, no matter if they're married, in relationship, or single
• One of Yoona's protector, follow her everywhere she goes,he makes sure she is kept out of danger
• An employee in the Im Company,belongs in the trading group, work as Yoona's vice leader
• Has melt many girl and women's heart with his cute face and charms
• He is nice and treat others well,but when he get jealous, you don't want to mess with him
• His weakness is going over the line without him realizing it, has a special feeling for Yoona without him realizing it

Kim Taehyung:

"Do I look dumb to you noona, why do you treat me differently?"

• Also a childhood friend of Yoona, Jimin, and Jungkook
• Prefers to be call V, 22 years old
• Shows a easy going personality to both boys and girls, that is why he have a lot of friends in both gender
• Another protector of Yoona, except he just follow her silently
• Also an employee of the Im Company, he is in the trading group too,but as Yoona's advisor
• Due to his handsome face,he had many women head over heels for him
• He could be a clumsy character in the group,but whenever Yoona is around he acts differently
• His weakness is his pureness,people take advantage of him because of it

Jeon Jungkook:

"Am I not different from the other men in your eyes,noona?"

• The youngest among the four childhood friends
• Is going to graduate this year,20 years old
• With his  cold appearance on the outside, and soft personality in the inside,he is being known as the Chic Maknae
• A protector of Yoona too,just like Jimin,he follows her around
• He is going to work in Im Company, and he is being assigned to the trading group
• He is as popular as Jimin and V when it comes to girls thanks to his good looking face
• His weakness is Yoona,he always make sure that he is being gentle and soft around her,he doesn't want to hurt her

Other cast:

Im Yoongi: 25 years old

Yoona's older brother,  prefer to be called Suga. Likes being overprotective over his sister,doesn't want her to get hurt, loves her dearly, doesn't allow her to date anyone

Kim Seokjin: 26 years old

:A trusted man of Suga,prefer the name Jin.The oldest of the friends, close to Yoona, have a brother like relationship with Yoona, Jimin, V, and Jungkook

Jung Hoseok: 24 years old

Older than Namjoon by 10 months, preferred being called with then name J-Hope, is good at making other people smile with his funny jokes and bright smile

Kim Namjoon: 24 years old

A very smart person,has a higher rank than most of the people, even Yoona, maybe the rank next to Suga, a shoulder to lean on when you need help with solving difficulties