Nonoka, a second-year university student, came to Tokyo on her day off. She plans to stay at her brother's house (a working man, no girlfriend, 4 years older than her) who lives alone, without telling her parents. Nonoka intention of going to popular spots in Tokyo from the start, but she came to see her beloved brother for the first time in a long time and to do the full-scale training play that they used to do together. "Hey, big brother, let's do that for the first time in a long time!" "More! Strangle me like you used to! Slap me on the butt! Submerge me in the bath!!"Nonoka's passion, who brought a lot of restraints, ignited her brother's Kokoro side. A day and night of brother and sister who are not satisfied with normal sex, held over one night and two days. As her sister approaches him in Kansai dialect, the brother remembers the old days and attacks her violently. Restrained and choked sex, deep throat blowjob, spanking until her butt is red... Restrained in the bath with her arms up and caressed, suffocated by being submerged in the bathtub... The final creampie is exactly what he wanted! Swallow it! Massive facial cumshots! "I love it when my brother ties me up tightly..." "I can feel it deep in my throat! Deepthroat meeeee!!" A drama centered on Yukari Nonoka, throws herself wholeheartedly into the action!