Main Characters: Kim Hyo InShe is a smart but happy-go-lucky girl. She wears glasses and sometimes she is called " Pretty Glasses" because of her looks and intelligence, She likes her childhood friend, Youngmin but suddenly develops feelings for Kwangmin.Kim Hyo EunShe is the younger twin of Hyo In. She is more popular than Hyo In for she is prettier and doesnt wear any glasses.  She likes Kwangmin and even asked her twin to set a date for them.Jo KwangminHe is popular in their school. Kwangmin is the silent and cold type but when he is with Hyo In, he changes.Jo YoungminHe is also popular like Kwangmin. He likes Hyo In but he cant tell her for he knows that his brother likes her. Not so Main Characters:Kim JongHyunOlder brother of Hyo In and Hyo Eun. Lee TaeminA total nerd who was saved by Hyo In from bullies. Develops feelings for Hyo In.    ForewordWe were Childhood friends. We promised that we will be always together. But, all of this suddenly changed because of LOVE.