Ataru is a worker at a construction company in Tokyo. The company he works for is a family-run business, so the executives who are blood relatives of the president are treated well, but the other employees are made to work like horses. Ataru is a lazy and bad employee among them, so he is treated poorly and is eventually made to work as the president's servant. Then, one day, when he goes to the president's house, he takes revenge on the president's young wife, Momo, to get revenge on the president...