Dear Mr. Prime Minister.

Kakumaru (Kiyoshi Atsumi) is an unpopular manzai performer who is too good-natured but has a very bad manners. Moulin, Kakumaru's former partner, gained popularity through her comedy routine with his wife Rouge, and in contrast to Kakumaru, she became a popular talent. Meanwhile, Kakumaru, inspired by his master's death, decides to move to Tokyo and reunites with Mulan. However, Moulin is caught having an affair by Rouge and is in trouble. For now, he introduces Kakumaru to an entertainment company, but instead of performing manzai, Kakumaru is entrusted with the job of firing a boiler. Kakumaru is completely tired and spends his days drinking alcohol, but one day he meets his childhood friend Ayako again...