mochizuki nozomu, yoshizawa tomoaki, kurotani riko, se-ekishunkan! idou?!, 1girl, blush, board eraser, bra, bra lift, breasts, censored, chalk, chalkboard, clothes lift, dutch angle, female focus, female masturbation, fingering, glasses, grabbing another's breast, grabbing own breast, green hair, groping, hair ornament, hairclip, head tilt, indoors, large breasts, long hair, looking at viewer, masturbation, mosaic censoring, necktie, plaid clothes, plaid skirt, pussy, pussy juice, school uniform, skirt, solo, underwear, very long hair