Yumika is an actress. Since she was a child, she has had to endure her mother Yoshika controlling her life. Yoshika is a "poison mother" to Yumika and Yumika cannot tolerate her mother anymore. Yumika appears on a talk show and criticizes her mother. Her criticism causes a sensation. 

Meanwhile, people around Yoshika state that she is not a poison mother and she is actually a good mother.