He was the kingka. She was the exchange student. He is cold on the outside but kind on the inside. She is happy on the outside but sad on the inside. When they meet, how would two different personalities react towards eachother?

He lives his life as a sad, miserable, cold person with a past that he will not let go of. He meets a girl who is the complete opposite of his personality. He believes there is no reason for a person like him to live. She shows him what she believes life is about.