This the list of the character:

You (Kim Areum)

-19 years old

-Love to play musical instrument such as; piano,violin,guitar.

-Comes from rich family

-Have 1 brother

-Famous in college because of her beauty

                                                                                               Lee Jeno

-19 years old 

-Good in sports,dancing,acting,singing and academic

-Dont like to talk to other people except his group 'NCT'

-He is the only child in his family

-He is super rich but doesn't tell anyone including his group

NCT members

-They are active in sports and good dancers

-They are 14 members including Jeno

p/s:you can change your name to another if you want to and I am making jeno 19 because he is too young.