1boy, 1girl, anchor symbol, anniversary, back-to-back, black hair, black sailor collar, black skirt, green eyes, height difference, long sleeves, looking at viewer, low ponytail, midriff peek, military, military uniform, miniskirt, naval uniform, pleated skirt, ponytail, sailor collar, school uniform, serafuku, short hair, short ponytail, short sleeves, sidelocks, skirt, smile, uniform