The show criticizes the Japanese culture of "presenteeism"—staying late just to look busy.
Yui eventually helps Mitani realize that hyper-fixation on work is not the only way to show dedication and that taking breaks is essential for health.
In this episode, Yui faces conflict with her colleague , whose rigid work ethic stems from a traumatic past at a previous job where she was bullied for taking time off.
The drama highlights the difference between Yui’s boundary-setting and her father’s generation, who prioritized work above all else. Watashi, Teiji de Kaerimasu (TV Series 2019– ) - IMDb
Yui avoids overtime by being highly productive during her actual working hours.
