Travel to the World of Naruto and Change the Ninja World

A hard-working office worker was late for work on the first day and ended up choking to death because he drank water in a hurry. Then he traveled to the world of Naruto and became an inconspicuous member of the Uchiha clan. Then the protagonist began to train hard and eventually became Hokage, saved the ninja world, married Bai Fumi, and reached the pinnacle of life.