What season and episode is the video chat between Guan Gu and his father in ipartment?

Season 4 Episode 7 Dahe, Guangu and Tang Youyou have already booked the place for the engagement party, but there is no Guangu's parents on the list to attend the engagement party, which surprised Youyou and everyone. Ceng Xiaoxian came back to inform everyone that he was with Nolan. Guangu, Meijia and others felt that Ceng Xiaoxian was moving too fast. Nolan came to the apartment and wanted to invite everyone to dinner. She hopes that everyone can take good care of Ceng Xiaoxian while she is abroad. Finally, jealous Hu Yifei decided to treat everyone to fried rice with eggs. Zhang Wei has been struggling with how to talk to Vivian. Meijia and Lv Ziqiao advised him to be straightforward and not to hesitate all the time. At the same time, Ceng Xiaoxian is also trying to participate in the "Egg Fried Rice Bureau" in Hu Yifei. Meijia and Ceng Xiaoxian learned that Joe pretended to be Vivian and Zhang Wei on Weibo, but Zhang Wei didn't know. Youyou and Guangu's father made a video. In the video, they saw Yifei and action art Zhang Wei who were drunk. At the same time, Ceng Xiaoxian told Zhang Wei the truth about Weibo, and Zhang Wei decided to get back at Joe. Drunk Hu Yifei and Nolan are alone. Yifei admits that she has always liked Ceng Xiaoxian, but now she can sincerely wish Nolan and Ceng Xiaoxian happiness. After some arguments, Guangu's father agreed to the marriage of Guangu and Tang Youyou.