urushihara satoshi, original, 2girls, 5boys, black hair, breasts, brown hair, chromatic aberration, classroom, clothed male nude female, exhibitionism, female pubic hair, gangbang, glands of montgomery, glasses, grabbing another's breast, groping, group sex, hairband, headband, medium breasts, multigrope, multiple boys, multiple girls, navel, nipple stimulation, nipple tweak, nipples, nude, pubic hair, public indecency, school, shameless, short hair, smile, standing, text focus, thighs, undressing