Kono Aozora ni Yakusoku wo - S01

One morning, Wataru Hoshino discovers a girl asleep in his room-wearing only her underwear. When she wakes up, she punches him in the face and leaps out the window to escape. This girl, Rinna Sawaki, soon turns out to be a transfer student at Wataru’s school and his new dorm roommate. Wataru shares the dorm with four other girls and their teacher, but their lives are upended when Temizugawa Heavy Industry shuts down its aviation division-the island’s biggest employer. With their families tied to the company, the girls are forced to leave the island within a year. Rinna refuses to get close to Wataru or the others, afraid of the pain she’ll feel when they inevitably part ways. But Wataru doesn’t agree, and over the next year, he tries to change her mind.