Choi Min Joo:

• 17 years old
• in last year of high school
• lived in America most of her life
• transfered to Korea on scholarship
• Filipino
• tomboy persona; kind; sweet
• loves skinship & music
• always on the honor roll list

Lee Jia Yi:

• 17 years old  (younger than Minjoo)
• in 2nd year of college - gets to visit Minjoo's high school anytime she wants
• gets good grades
• lived in Singapore most of her life
• transfered to Korea on scholarship
• Chinese
• innocent persona; caring; shy
• will become a bit of a diva/tough chick if someone messes with her loved ones

Lee Tae Min:

• 17 years old  (older than Jiayi)
• Jiayi's stepbrother
• in last year of high school - Min Joo's classmate
• gets good grades
• in a fine arts high school
• Korean
• innocent persona; cute; bubbly
• loves to dance

Lee Jin Ki:

• 21 years old
• Jiayi's colleague - goes to college studying broadcasting media
• son of a meat shop owner
• ranks 2nd place in academics
• Korean
• loves chicken - especially fried
• has an Onew condition (LoL)
• cheerful persona; clumsy; bubbly

Choi Min Ho:

• 19 years old
• goes to 2nd year of college - majors in filming
• son of a sports coach
• quiet persona; observant; kind
• Korean
• does well at school
• loves sports - especially soccer
• really tall - 6 feet in height

Kim Ki Bum:

• 19 years old  (older than Minho)
• goes to 1st year college -  majors in fashion
• family is rich
• diva persona; the motherly figure; funny
• Korean
• loves pink and other girly things...
• nickname is Key for short
• able to dress up as a girl and get away with it comfortably...

Kim Jong Hyun:

• 20 years old
• graduated from music school - gets to visit Minjoo and Jiayi's schools
• older sister is a model
• charming persona; nice; handsome
• Korean
• loves skinship & music
• average height of about 5 ft. 7 in. - averagely tall yet short for a guy
• looks like a cute combination of a dinosaur & a puppy