The selfie video, which begins in Hakata, Fukuoka Prefecture, was taken for his brother in Tokyo. My younger brother, who had been a hikikomori for several years, started working part-time. I couldn't stand to report it, so I turned the camera around before leaving to see him for the first time in a long time. His brother's name is Oz. He believes in his own overflowing talents and does not hide his condescending attitude toward those around him. Naturally, it was floating at the AV manufacturer at work. And then a decisive event occurs that makes things worse. - Her strong-willed and quarrelsome older sister, Chika, mistook the important figure of the manufacturer, the Kimomen pig man, for the mastermind of the bullying and made her sit on the ground. Oz, who was in a predicament, shifts the blame to his sister, saying, "It's all your fault that it doesn't work," and Chika throws away her pride out of remorse and gives an apology to the pig man. The next day, when she learns that Oz's treatment has improved, Chika, who is trapped in deep reincarnation, accepts Deb's genuine vaginal shot and even selfie masturbation at home. Who was the camera that was secretly filming the whole thing? What was my sister's real job? A video recording of a brother with a bad personality and an overprotective and bullish sister unravels everything.