My New Boss is Goofy

After his power-tripping boss broke his spirit and his health, Momose leaves his job for a new job in sales at an advertising agency. However, on the very first day of his new job, Momose is unable to move due to a stomachache caused by his past traumas. "What should I do if my new boss also abuses his power?" That's when his new boss, Shirosaki, takes him out to see clients. Just what exactly is...