yuri lives in Tokyo with her hardworking husband. one day, her nephew takashi came to tokyo from the countryside where her husband's parents live, for his exams. yuri was eagerly entertaining the rare guest, as takashi wanted to stay overnight at her uncle and aunt's apartment for about a week until the actual exam. but contrary to such aunt's feelings, the nephew takashi, who is a student in the throes of wanting to have sex, had his gaze fixed on the young, beautiful, and big-breasted aunt's female body. and one night, when her husband was away on night shift...! *the recorded content may vary depending on the distribution method.