Qualia plot
Yuko is married and takes her place in the Tanaka family, who run a chicken farm and live a modest life, despite being bullied by her husband's sister, Satomi. One day, Saki, a mistress of Yuko's husband, Ryosuke, visits their house by applying for a live-in position at the chicken farm. After the conversation, Saki confesses in front of all the family members that she is Ryosuke's mistress and that she is pregnant with his child. In order to prevent her from becoming a fodder for gossip and to calm Saki down, they decide to let her live and work with them. Thus begins a strange life together...