CHIN's

To create an advertisement for a renovated amusement park, Momose and Shirosaki go on-site to gather information. From merry-go-rounds to roller coasters, the two try out various attractions after Shirosaki states, "It's essential to enjoy the attractions firsthand to create a good advertisement." On the way home from their successful on-site research, the train they are riding in suddenly stops after a power outage. Inside the pitch-black train car, Momose tells Shirosaki about the day he decided to change jobs.

After his power-harassing boss damaged his spirit and health, Momose quit working and started a new sales job for an advertising agency. However, on the very first day of his new job, while making rounds to see clients with his new boss, Momose frets, "What should I do if my new boss also abuses his power?" and is unable to move due to a stomachache caused by his past traumas. Alone, Momose anxiously worries, "If I don't hurry and stand up…I might get kicked." But just what exactly does his new boss Shirosaki do…?!