I know nothing

Eve is a cheerful woman that everyone's loved and she had a childhood friend, Sei. Eve making everyone smile brightly and she looks like an angel above the sky. Sei is the opposite of Eve, he's not bright like Eve, and may not everyone be wanted but he does have friends but not many like Eve. Every summer vacation Eve was going to America with her parents to visit their grandparents. Eve was always tagging along with Sei, do Eve will fall in love with Sei? Will Sei fall in love with Eve that has an angel looked? Are they meant to be together or they meant to be apart?