Kim myungsoo is the ice prince of Changmin High. Myungsoo is known as the ice prince also because he is in a band the name of the band is called infinite and in the band he plays the guitar.

Jung Krystal is a very helpful and kind girl unless you're an enemy she moved to Seoul because her dad got a job to be a reporter so her whole family moved to Seoul from Busan.

Kim Sung-kyu is the lead singer in Infinite he's the leader too. He's the oldest one so he is really protective and caring for his namdongsang.

Lee Hoya is the rapper in Infinite he is also known for being kind and for being a gentleman to ladies. he's the opposite of Myungsoo.

Yang Yoseob is the drummer in Infinite he is also one of the main vocalist. He is the youngest one and he acts like a little kid and he is the king of aegyo.

Iu is Yoseob's girlfriend she's very smart and nice and supportive she's one of Krystal's best friend.

Sulli is one of Krystal's best friend she is a huge fan of Hoya from Infinite in fact Hoya is her bias. Sulli is smart supportive and also protective 

Hyuna is Sunggyu's girlfriend she is a dancer and she loves to sing duets with Sunggyu

Naeun has an beautiful innocent face but deep down inside she's evil and mean. She loves myungsoo and she is a spoiled brat thay gets everything she wants and asks for.

Mark is the school's president and he's a straight A student he's very smart and quite handsome he also loves krystal