The protagonist, Beichen, transmigrates to the world of Hokage. The sign-in System developed for him by the Akatsuki can, under certain conditions, draw ninjas and ninjutsu for his own use.
His goal is to build a force of his own and take on the Five Great Shinobi Villages.
The first ninja he draws is actually Tsunade? It's settled, then. Tomorrow I'm staying home and skipping work!
He teams up with Orochimaru to defeat Hiruzen Sarutobi, joins forces with Danzo to surround Kakashi, plans to kill Naruto and Sasuke before they reach their full potential, and build a force to become the Shadow.
Following the timeline of Naruto: Shippuden, popular ninjas will appear one by one. Beichen keeps getting involved in major events, leading the Akatsuki and the Hidden Shadow Village against the Five Great Shinobi Villages!
I can only give you three stars. It's really average and extremely messy.