My First Friend Is My First Love ( Flippy x Flaky )

Flaky a daughter of a wealthy family ([a.n] by wealthy I don't mean that she's very rich,and if you forgotten this is a fanfic). She rarely sees her parents. When she was young, a friend of his father,a military soldier visited their house with his family and stayed for a few weeks at their house. That's when she met a boy with beautiful green hair and eyes, the both of them played together and the both of them made a promise. She was desperate to find out and she wants to find out who this old friend of hers is. Who could that boy be?