This is a special institution targeting new half individuals, aiming to strongly masochize them. The subject this time, 'Sakuya,' is an excellent NH experimental subject with not only good looks but also beautiful penile and anal areas. The two研究员, both nymphomaniacs, are brimming with enthusiasm... They violate the experimental subject's anal and vaginal openings with a penile wand, causing continuous intense orgasms! Next, straddling the penile area and inserting it, they perform crab-leg-like vigorous pistoning to forcibly extract semen! And completely fallen into masochism, Sakuya now eagerly awaits the next perverted experiment...!
