Iwakura Mitsumi, a tenacious country girl, prepares for high school in the big city. She meets the handsome Shima Sousuke, whose easygoing ways help her adapt in the real world.

Throughout the three years of high school, Midori ate the bento lunch her dad made for her every single day. And in the very last bento of high school, Midori finds a photo of "the first high school bento" along with a hand written letter from her Dad.

12 years after Char's rebellion, Hathaway Noa leads an insurgency against Earth Federation, but meeting an enemy officer and a mysterious woman alters his fate.