Kono Aozora ni Yakusoku wo

Synopsis:

South Sakoujima Island was once a booming industrial center for a popular aviation company, but now it is shutting down and the employees have a year to evacuate. Wataru Hoshino and his friends attend Temuzigawa Gakuen on the south-west side of the island, knowing full well that the following March they'll all split apart. With precious time left, Wataru gets to know better the girls who live with him and share his life, and slowly but surely works his way into each of their hearts.