Tiffany

Tiffany is a shy and sweet girl, who was transfered of USA to Korea and she is on SM highschool. She met Yuri, another shy, but kind, girl and became her bestfriend. She's very close to Yuri and she tell everything to her, except one thing... Her half-sister is Luna, a popular girl, who likes her a lot. Luna want Tiffany became popular, but Tiffany doesn't like to be the attention center. Her real mother is Kim Taeyeon and her stepfather is Park Jung-su. Tiffany met Onew in SM, a sweet and shy guy, who is also Lee Taemin's brother. Taemin is popular, but, exactly like Tiffany, Onew doesn't like to be. Tiffany start to work on Brighter than Jewels jewel company, where she met Jessica, an icy girl, and Sooyoung, a food eater and almighty girl. She became their friends and they are always trying to help her. Tiffany has fluent English and gives English tutions to Yoona, Seohyun and Wooyoung, who has a crush for her.

Onew

Onew is shy and sweet and the older brother of Taemin. Taemin is in the school popular boy group, but Onew don't want to be popular. Onew's bestfriend is Minho, another popular guy. Onew has an angelic voice, but he doesn't know it. He met Tiffany and he has a secret crush for her. His parents are rich and lives on a big mansion. He also doesn't matter about that, he just want to be another simple guy, althought his brother and his bestfriend are very popular. His cousins are Victoria, Krystal and Jessica. His mother is Kim Hyoyeon and his father is Lee Junho. They are very talented is dance, and they know Onew's talent to sing, trying to force him to go to a art school. When Onew is finally forced, he enter in the music school and he discover that Tiffany is there too...

Minho

Minho is a popular guy. His sisters are Choi Sooyoung and Choi Jinri (Sulli). His bestfriend is Onew, althought he is a shy guy. Minho has also a secret crush for Yuri, another shy girl he met in the Science class. Yuri gives Science tutions to him. Minho is very nice, not all the popular guys has to be playboys. He is very charismatic, what makes all the girls fallen by him. He doesn't pay them any attention, he is just nice for them. He just want Yuri. He is an amazing rapper, like Yuri, and he enter in the art school too. He met Key there, who became his first friend there. One day, he discover he has to make a rap audition with Yuri...

Yuri

Yuri is a kind and shy nerd. She's pretty good at Science and she loves to read. Her bestfriend is Tiffany, and her twin is Yoona. She gives Science tutions to Minho and has also a secret crush for him. She's on the art school, because she's very good at rapping. Yuri is an orphan, like her twin sister, and the both live with Lee Sunny. Yuri suffer very much at the past, she doesn't want to admit her feelings to Minho, because she's scared to suffer again. She's vice-president of the Student Association and she works in the IQ park.

Jessica

Jessica is a cold, but nice, girl. She's in SM school and her bestfriend is Sooyoung. She works on the Brighter than Jewels jewel store with Sooyoung and Tiffany. Jessica is called by Ice Princess, but when she likes a person, she became vey sweet and the ice melts. She mets Jonghyun, who's on the art school like her, and she start to fall in love with him, althought he is a casanova. She has an angelic voice, like him, and she's very good at English, like Tiffany. Her sister is Krystal.

Sooyoung

Sooyoung is a funny and almighty girl. She's quite popular on SM highschool, because her brother is Minho and because her parents are owners of the famous jewel store Brighter than Jewels, where she works. She's on the store publicity, because she's tall, skinny and beautiful. Her bestfriend is Jessica and she's very close at her, althought she's an Ice Princess. She's Key's close friend, but she doesn't know his feelings. Her other sister is Choi Jinri, a unresistible cute girl.

Key

Key is almighty and a hilarious diva. He's an amazing rapper, and he is on the art school. He's rich and popular. He is Sooyoung's close friend, and has also a secret crush for her. He's photographer of the Kim companies and a stylist. His brother is Jonghyun and his cousin is Amber. His real name is Kim Kibum, but he hates it.

Jonghyun

Jonghyun is a casanova, who change when he met Jessica. He knows that Jessica is an Ice Princess, but he like her and try to get her. He's on the SM highschool popular group, alongside Minho, Key, his brother, and Taemin. He's an amazing singer, but he hides it. When he goes to a cafe and Jessica go there too, the cafe people told them to sing a duet together...

Yoona

Yoona is a charming, but shy, girl. She's on SM highschool, and many guys are fallen by her, but she doesn't pay them any attention, because, like her twin Yuri, she is scared to suffer again. One of that guys, Taecyeon, try to make her his, but she hates him. She likes Taemin, but she's to shy to admit. Yoona's bestfriend is Seohyun, who is young, but very responsible. When Taecyeon discover that Yoona likes Taemin, he become furious, and he promise to make Yoona only his.

Taemin

Taemin is a cute popular, but very shy, guy. His brother is Onew, a shy guy, and his bestfriends are Minho, Key and Jonghyun. Taemin is rich and a model of Lee companies. He likes Yoona, but he is too shy to admit. Many girls are fallen by his cuteness, but he's totally innocent and shy. He is a good friend of Sulli, and she try to help him with Yoona.

Seohyun

Seohyun is the innocent and cute maknae. She's very kind and responsible. She's everytime able to help her bestfriend Yoona. Seohyun is very nice with everyone, althought they treat her very bad. She likes Kyuhyun, but she's too innocent and shy to admit it. She has a little brother named Kyungsan, and she is very responsible with him. She's smart and a nice student and she loves to read books.

Sunny

Sunny is a cute girl and an aegyo queen. Her uncle is Lee Sooman, the owner of SM highschool, and it's because of that she's popular. She lives with Yoonyul twins and care about them a lot. She likes their friends and try to help them at all, like a little mother.

Kyuhyun

Kyuhyun is a nice and sweet guy. He is very shy, but he's nice with the closer people. He likes Seohyun, but he is too shy to confess it. He is very talented.

Luna

Luna is Tiffany's half sister. She's very popular, and try to make Tiffany popular, but she doesn't want. Luna cares about Tiffany alot. She's model on Jung model agency with her bestfriend Krystal.

Krystal

Krystal is Jessica's sister. She's very popular, but she doesn't understand why isn't Jessica popular. She's model on the Jung model agency. Her bestfriend is Luna.

Sulli

Sulli is popular and very cute. Her bestfriends are Victoria and Taemin. She everytime able to help them, but it's a little hard. She's Sooyoung and Minho's sister. She appear on the Brighter than Jewels jewel store publicities alongside her sister Sooyoung.

Victoria

Victoria is Onew's cousin. She's model at the Song model agency and her bestfriend is Sulli. She's the only who knows that Onew likes Tiffany, because she can detect any crush on the people eyes. Her boyfriend is Nickhun.

Nickhun

A nice and loyal guy. His girlfriend is Victoria and he likes her very much. He's on the same group than Taecyeon and Wooyoung, but he doesn't help them with Tiffany and Yoona, because Victoria's cousin is Onew.

Taecyeon

Taecyeon is a rude and popular guy. He likes Yoona, but when he discover that she likes Taemin, he try to separate the 2 love birds. His bestfriend is Wooyoung

Wooyoung

Wooyoung is a cocky and popular guy. He is Taecyeon's bestfriend. He likes Tiffany, but he knows that she like Onew and try to separate them.