Tutor Himari is always expressionless, gives no small talk, and only teaches. Prank-loving Kenichi slips her an aphrodisiac. Her body reacts but at first she keeps silent and blank-faced. Feather-light touching finally makes her climax. He films that and gives more orders, including blowjobs. She stays blank in the face but turns hypersensitive, drools, and cums over and over with a muddy voice as her reason falls apart.