Purge the Court and Bring Tsunade Back to Become Hokage

A modern office worker unexpectedly transmigrates into the Naruto world as Uchiha Shin, the older brother of Uchiha Izumi. Uchiha Shin is classmates with Uchiha Itachi, but his talent is only average, especially when he lives in Itachi's shadow. It is not until he turns twelve that he awakens a mission System. From then on, he saves Shisui, who was about to take his own life, recruits Itachi, and wins the unwavering loyalty of Kakashi and Guy... Under the banner of purging corrupt officials from the court, he kills Hiruzen and eliminates Danzo, brings Tsunade back to become Hokage, marries her, and reaches the pinnacle of life...