剧情：《过分的姐姐あまりにも言ういとこ姉に》是属于伦理电影类型，官方公布的演员表主要是未知，官方公布的主要简介说的是　　Yasuo is staying at home with his father, Tassuke, who is just like his uncle.                                                                    　　However, Tase’s daughter, Seiko, has an outspoken affinity for Yasuo from the first day.                                                                    　　Seiko’s aggressive body attack that did not win the lust                                                                    　　Yasuo told her that she was like her cousin’s sister                                                                    　　I can not refuse and start to spend a hot night.