The empty house

Lucy is a quiet girl who doesn't smile and sometimes laughs, Natsu is the class clown that notices Lucy and thinks she is the prettiest girl in the world, he had been working for years and years to make her smile. If it is a good day he succesfully makes her laugh, but not one day does she smile... Until she has to move to a private institute in clover. Natsu gets really mad that she is leaving and the two break up into a fight the day she leaves. When Lucy goes to her new school she meets a boy named Leo, but what happens when she starts missing natsu, so... what will she do now?