Hiding from her boyfriend, she continues to have sex with a busty woman in the opposite room, degenerating into a sex slave who submits to her desires... (Yami Rin FSDSS-783)

Rin is a speed skater dating Wataru, a man who values speed. Ooku, who lives in the opposite room and can see Rin's room, frequently peep and masturbate. One day, Ooku can no longer restrain himself and rapes Rin! Afterwards, Rin is forced to come aroused each time, and in satisfying Ooku's sexual desires, she gradually develops an obsession with his penis... She succumbs to relentless sexual intercourse and reaches relentless orgasms! "If you like me... please play with me harder!" Her large breasts and slender figure are reduced to a sex toy, manipulated at will!!