Katsura and Midori are in their third year of high school and are about to graduate. During these three years of high school, Katsura has made many friends and playmates, but Midori has only Katsura. With each passing day, Katsura becomes more and more active with men and becomes absorbed in social media, living a vibrant life in a world Midori knows nothing about. Knowing this, Midori suddenly stops going to school, wanting Katsura's attention and concern. Katsura's loneliness doubles with Mido...