Chie Saeki, an elite career woman who was appointed as the chief at a young age. Chie was seen by the upper management and loved by her subordinates, and seemed to be smooth sailing, but she had a longer career than Chie and was the only one who had a hard time with her older subordinate, Tomoda. Meanwhile, Chie and Tomoda, who has a long history of the company, were nominated and assigned a job from above.