本当に撮りたい大切な被写体がチサト（手島実優）だと気付いたミト（田牧そら）はチサトをモデルに撮影したいと申し出る。２人での撮影のため、ミトが選んだ場所は無人島の猿島。２人で島をめぐりながら撮影をする中で、改めてお互いが大切な存在だと気付く。夏が終わる頃とうとうチサトのファースト写真集が発売された。そこには強く優しいミトの笑顔があった！！
When Mito (Sora Tamaki) realizes that the important subject she really wants to photograph is Chisato (Miyu Teshima), she offers to take a picture of Chisato as a model. For the two of them, Mito chose the uninhabited island of Sarushima. As the two of them go around the island and take pictures, they realize once again that they are important to each other. Towards the end of the summer, Chisato's first photo book was finally released. There was a strong and gentle smile of Mito!
