Daewon high school is one of the elite schools of South Korea. The students who go there are the heirs of Seoul’s richest companies, as well as the mayor’s children, and others who came from such influential background.

Kai is the most popular student there, known for the youngest son of the South Korea’s biggest electronic company, E&O, his playboy attitude, irresistible looks, stylish outfits, not giving a damn about the teachers and grades, mind-blowing parties which he throws at his penthouse in Gangnam every Sunday night and most important of all, his devious schemes. Most businessmen are schemers, but for the case of Kai, he was born with it. He knew how to deal with his kindergarten teacher who gave him a lot of homework, he told his butler to give the woman some extra money to pay off her debts and ever since then, Kai’s family became aware of his dirty little plans and that they keep an extra eye out for him.

Kai has a best friend called Do Kyungsoo, who’s shorter than Kai, with large chocolate brown puppy eyes and short fluffy hair. Despite the fact that Kai is a playboy and a schemer, Kyungsoo is known as ‘the golden boy’. He also came from a wealthy background, the only son of Taeyang enterprises, with amazing intellectual brain and straight As in every subject except sports, unlike Kai, he treats women with respect and kindness. He’s every girl’s Prince Charming.

Both Kai and Kyungsoo go to Daewon high school, but unlike hyper excited Kyungsoo, Kai’s pretty annoyed dealing with school. He paid quite enough money to the teachers to stop bothering him in the class and the great grades, of course. School has never been his favorite place, ever since his dad passed away. Due to his stepdad’s order and his mom’s plead; he arrived at school today, in his sleek, black limo and his best friend chattering non-stop about their so-called upgraded school. As soon as the limo pulled up at the portico, the golden boy’s just as excited as most of the students of Daewon high.

“Look, they even got a new swimming pool at the rooftop! Awesome!!” his best friend shrieked, eyes twinkling with joy.

Like his best friend, all of the students at the school were excited about their upgraded school. The cafeteria was buzzing with students and the new gym hall gained much attention from the male students.

Kai and Kyungsoo looked around for some time until Kai’s phone buzzed, he pulled out his iphone 5S and frowned when he saw the caller ID, “Why’s my financial manager calling me at 8am on the first day of my school?” he frowned again and took the call. And that’s where everything started.