pentagon (railgun ky1206), original, commentary request, highres, 1girl, 2boys, black hair, black sailor collar, black skirt, black socks, blush, board eraser, chalkboard, classroom, closed eyes, closed mouth, grey eyes, holding, indoors, long hair, long sleeves, multiple boys, pleated skirt, ponytail, sailor collar, school uniform, serafuku, shirt, short hair, skirt, socks, stretching, tsurugi saya, very long hair, white shirt