The popular series introduces a slender beauty witch, Hikari Hisaki, who develops a new erogenous zone for women, the Spence Mammary Gland! The Spence Mammary Gland is the G-spot of the breasts! Developed by a specialist in Spence Mammary Gland research, it's a first-time chest orgasm! Reveling in newfound pleasure, drooling and arching back with ecstatic screams of orgasm! Breasts, naturally high in sensitivity, become entire erogenous zones! Losing consciousness with mammary gland stimulation sex! Breaking down with Spence toy torment and incontinence! Covered in bodily fluids and spasming with nipple-unlocked sex!