Cheongdam international high school or CIHS your the only child in your parents and your very rich so you made it in the leaderboad where the most rich people are your parents make trillions everyday and your calm manupulative and smart you are on the bad side of Baek Je-na but baek je-na dosent do anything to you cause your rich the characters are baek je-na woo-jin yul-hee seo do-eon and oh si-eun you dont have friends cause you want to be alone je-na and her group dosent bully you