1girl, black_bitou, blonde_hair, blue_sweater_vest, cherry_blossoms, collared_shirt, long_hair, necktie, on_grass, open_mouth, petals, red_eyes, sakura-sou_no_pet_na_kanojo, school_uniform, shiina_mashiro, shirt, short_sleeves, skirt, spring_\(season\), sweater_vest, white_shirt